With much credit to nagel84 for their decisive insight for the best dance of series 9 of all types- I thought that since this series wasn't the most blockbusting for memorable dances (even from the so called top 4- and of course Russell!) let's widen our horizons

So let's spread this out across all 9 series Here's mine:

American Smooth: Kelly and Brendan
Argentine Tango: Mark and Karen
Cha Cha Cha: Alesha and Matt
Charleston: Holly and Artem
Foxtrot: Holly and Artem
Freestyle: Tom and Camilla
Jive: Jill and Darren
Paso Doble: Austin and Erin
Quickstep: Denise and Ian
Rumba: Kara and Artem
Salsa: Mark and Karen
Samba: Zoe and Ian
Tango: Zoe and Ian
Viennese Waltz: Alesha and Matt
Waltz: Matt and Flavia

American Smooth: Kara and Artem
Argentine Tango: Ricky and Natalie
Cha Cha Cha: Ricky and Natalie
Charleston: Chris and Ola
Foxtrot: Tom and Camilla
Freestyle: Tom and Camilla
Jive: Scott and Natalie
Paso Doble: Holly and Artem
Quickstep: Ricky and Natalie
Rumba: Cherie and James
Salsa: Mark and Karen
Samba: Zoe and Ian
Tango: Rachel and Vincent
Viennese Waltz: Harry and Aliona
Waltz: Ricky and Natalie (SF)

American Smooth - Pamela and James
Argentine Tango - Rachel and Vincent
Cha-Cha-Cha - Alesha and Matt
Charleston - Pamela and James
Foxtrot - Rachel and Vincent
Freestyle - Tom and Camilla
Jive - Jill & Darren
Paso Doble - Austin & Erin
Quickstep - Chelsee & Pasha
Rumba - Rachel and Vincent
Salsa - Mark and Karen
Samba - Zoe and Ian
Tango - Austin and Erin
Viennese Waltz - Ali and Brian
Waltz - Alesha and Matt

American Smooth: Pamela & James
Argentine Tango: Mark & Karen
Cha Cha Cha: Alesha & Matt
Charleston: Chris & Ola
Foxtrot: Alesha & Matt
Freestyle: Tom & Camilla
Jive: Jill & Darren
Paso Doble: Kara & Artem
Quickstep: Ricky & Natalie
Rumba: Kara & Artem
Salsa: Matt & Flavia
Samba: none memorable enough for me to pick! I only watched series 4 onwards properly
Tango: Matt & Aliona
Viennese Waltz: Alesha & Matt and Harry & Aliona - I can't split them, 2 very different VWs, but both stunning.
Waltz: Alesha & Matt

American Smooth : Kara & Artem
Argentine Tango : Rachel & Vincent
Cha Cha Cha : Alesha & Matthew
Charleston : Jimi & Flavia
Foxtrot : Jimi & Flavia
Freestyle : Matt & Flavia
Jive : Chelsee & Pasha
Paso : Kara & Artem
Quickstep : Alesha & Matthew
Rumba : Rachel & Vincent
Salsa : Matt & Flavia
Samba : Matt & Aliona
Tango : Rachel & Vincent
Viennese Waltz : Harry & Aliona
Waltz : Matt & Flavia

Poor quality but this is Zoe's Samba!

Edit: Would have been helpful to actually attach the link!

http://www.youtube.com/watch?v=i7ybE77KKeo

I've only started watching from series 4. Did manage to catch up some of the best from series 2 and 3 from youtube (not there any more). So here goes my favourites from the nine series:

American Smooth: Colin and Erin
Argentine Tango: Rachel and Vincent
Cha Cha Cha: Lisa and Brendan (I know!!!)
Charleston: Chelsee and Pasha (by far!)
Foxtrot: Lisa and Brendan (I know!!!)
Freestyle: Tom and Camilla
Jive: Jill and Darren
Paso Doble: Chelsee and Pasha (by a country mile!)
Quickstep: Harry and Aliona
Rumba: Kara and Artem
Salsa: Matt and Flavia
Samba: Mark and Karen
Tango: Zoe and Ian
Viennese Waltz: Ali and Brian
Waltz: Matt and Flavia (series 5's waltzes were the best, also remembered fondly Gethin & Camilla's plus Alesha & Matthew's)

American Smooth: Ali and Brian (SF)
Argentine Tango: Mark and Karen
Cha Cha Cha: Alesha and Matt
Charleston: Matt and Aliona
Foxtrot: Lisa and Brendan
Freestyle: Tom and Camilla/Jason and Kristina
Jive: Jill and Darren
Paso Doble: Mark and Karen
Quickstep: Colin and Erin/Lisa and Brendan (SF)/Jason and Kristina
Rumba: Colin and Erin
Salsa: Mark and Karen
Samba: Matt and Aliona
Tango: Matt and Aliona
Viennese Waltz: Ali and Brian
Waltz: Gethin and Camilla

Quite interesting to see how varied they are across the series thinking back.

American Smooth: Harry and Aliona
Argentine Tango: Mark and Karen
Cha Cha Cha: Alesha and Matt
Charleston: Chris and Ola
Foxtrot: Lisa and Brendan
Freestyle: Tom and Camilla
Jive: Jill and Darren
Paso Doble: Chelsee and Pasha
Quickstep: Chelsee and Pasha
Rumba: Rachel and Vincent
Salsa: Mark and Karen
Samba: Zoe and Ian
Tango: Zoe and Ian
Viennese Waltz: Pamela and James
Waltz: Alesha and Matt

American Smooth: Kara and Artem
Argentine Tango: Kara and Artem
Cha Cha Cha: Chelsee and Pasha
Charleston: Chelsee and Pasha
Foxtrot: Holly and Artem
Freestyle: Lisa and Brendan
Jive: Chelsee and Pasha
Paso Doble: Kara and Artem
Quickstep: Colin and Erin
Rumba: Kara and Artem
Salsa: Mark and Karen
Samba: Zoe and Ian
Tango: Kara and Artem
Viennese Waltz: Kara and Artem
Waltz: Matt and Flavia

American Smooth: Kara and Artem
Argentine Tango: Mark and Karen
Cha Cha Cha: Alesha and Matthew
Charleston: Chris and Ola
Foxtrot: Austin and Erin
Freestyle: Tom and Camilla
Jive: Chelsee and Pasha
Paso Doble: Kara and Artem
Quickstep: Chelsee and Pasha
Rumba: Chelsee and Pasha
Salsa: Mark and Karen
Samba: Zoe and Ian
Tango: Kara and Artem
Viennese Waltz: Alesha and Matthew
Waltz: Alesha and Matthew

American Smooth:Holly & Artem
Argentine Tango: Jason & Kristina/Ricky & Natalie/Alesha & Matt. Love them all
Cha Cha Cha: Alesha & Matt
Charleston: Chelsee and Pasha
Foxtrot: Matt & Aliona
Freestyle: Alesha & Matt
Jive: Chelsee and Pasha
Paso Doble: Chelsee and Pasha
Quickstep: Chelsee and Pasha
Rumba: Kara and Artem
Salsa: Matt & Flavia
Samba: Ian & Jade/Matt & Aliona
Tango: Rachel & Vincent
Viennese Waltz: Alesha & Matt
Waltz: Alesha & Matt

American Smooth: Kara and Artem
Argentine Tango: Mark and Karen
Cha Cha Cha: Alesha and Matthew
Charleston: Chris and Ola
Foxtrot: Rachel and Vincent
Freestyle: Tom and Camilla
Jive: Jill and Darren
Paso Doble: Chelsee and Pasha
Quickstep: Chelsee and Pasha
Rumba: Kara and Artem
Salsa: Mark and Karen
Samba: Mark and Karen
Tango: Zoe and Ian
Viennese Waltz: Ali and Brian
Waltz: Alesha and Matthew

American Smooth: Kara and Artem
Argentine Tango: Mark and Karen
Cha Cha Cha: Alesha and Matthew
Charleston: Chris and Ola
Foxtrot: Holly & Artem
Freestyle: Tom and Camilla
Jive: Chelsee & Pasha
Paso Doble: Chelsee and Pasha
Quickstep:Colin & Erin
Rumba: Chelsee & Pasha
Salsa: Tom & Camilla
Samba: Chelsee & Pasha
Tango: Zoe and Ian
Viennese Waltz: Pamela & James
Waltz: Alesha and Matthew

American Smooth: Kara & Artem
Argentine Tango: Jason & Kristina/Rachel & Vincent
Cha Cha Cha: Alesha & Matthew
Charleston: Chris & Ola
Foxtrot: Holly and Artem
Freestyle: Jason & Kristina
Jive: Scott & Natalie
Paso Doble: Austin and Erin
Quickstep: Jason & Kristina
Rumba: Kara and Artem
Salsa: Gethin & Camilla
Samba: Cant remember one I havent watched through my fingers
Tango: Rachel & Vincent
Viennese Waltz: Kara & Artem
Waltz: Gethin & Camilla

American Smooth: Kara and Artem
Argentine Tango: Mark and Karen
Cha Cha Cha: Alesha and Matthew
Charleston: Chris and Ola
Foxtrot: Rachel and Vincent
Freestyle: Tom and Camilla
Jive: Jill and Darren
Paso Doble: Chelsee and Pasha
Quickstep: Colin and Erin
Rumba: Rachel and Vincent
Salsa: Mark and Karen
Samba: Mark and Karen
Tango: Zoe and Ian
Viennese Waltz: Alesha & Matthew/Mark & Karen
Waltz: Alesha and Matthew

American Smooth: Colin & Erin/ Jason & Kristina
Argentine Tango: Mark and Karen/ Jason & Kristina/ Rachel & Vincent
Cha Cha Cha: Alesha and Matt
Charleston: Chris and Ola/ Chelsee & Pasha
Foxtrot: Roger & Camilla/ Lesley & Anton
Freestyle: Tom and Camilla/ Jason & Kristina
Jive: Jill and Darren/ Chelsee & Pasha
Paso Doble: Austin & Erin/ Darren & Lilia/ Chris & Hanna (for the WRONG reasons)
Quickstep: Denise and Ian/ Colin & Erin
Rumba: Colin & Erin/ Kara & Artem
Salsa: Mark and Karen/ Chelsee & Pasha
Samba: Denise & Ian
Tango: James & Camilla/ Zoe and Ian/ Jason & Kristina
Viennese Waltz: Pamela and James/ Mark & Karen
Waltz: Alesha and Matt/ Lesley & Anton/ James & Camilla

American Smooth: Colin and Erin
Argentine Tango: Rachael and Vincent
Cha Cha Cha: Ricky and Natalie
Charleston: I hate this dance tbh.
Foxtrot: Tom and Camilla
Freestyle: Tom and Camilla
Jive: Louisa and Vincent
Paso: Austin and Erin
Quickstep: Colin and Erin
Rumba: Cherie and James
Salsa: MDA and Flavia
Samba: Zoe and Ian
Tango: James and Camilla
VW: Kelly and Brendan
Waltz: Gethin and Camilla

American Smooth: Kara and Artem
Argentine Tango:Kara and Artem
Cha Cha Cha: Lisa and Brendan
Charleston: Chelsee and Pasha
Foxtrot: Alesha and Matthew
Freestyle: Alesha and Matthew
Jive: Jill and Darren
Paso: Cheslee and Pasha / Jill and Darren
Quickstep: Denise and Ian
Rumba: Kara and Artem
Salsa: MDA and Flavia
Samba: Zoe and Ian
Tango: Zoe and Ian
VW: Kara and Artem
Waltz: Alesha and Matthew

American Smooth: Kara & Artem
Argentine Tango: Rachel & Vincent
Cha Cha Cha: Alesha & Matthew
Charleston: Kara & Artem
Foxtrot: Lisa & Brendan
Freestyle: Tom & Camilla
Jive: Jill & Darren
Paso Doble: Kara & Artem
Quickstep: Ricky & Natalie
Rumba: Kara & Artem
Salsa: Matt & Flavia
Samba: Ricky & Natalie
Tango: Kara & Artem
Viennese Waltz: Kara & Artem
Waltz: Alesha & Matthew

American Smooth: Kara and Artem
Argentine Tango: Mark and Karen
Cha Cha Cha: Alesha and Matthew
Charleston: Chelsee and Pasha
Foxtrot: Rachel and Vincent
Freestyle: Tom and Camilla
Jive: Jill/Louisa/ Chelsee
Paso Doble: Austin and Erin
Quickstep: Darren and Lilia (Xmas special)
Rumba: Cherie and James
Salsa: Mark and Karen
Samba: Zoe and Ian
Tango: Zoe and Ian / James and Camilla
Viennese Waltz: Bill and Karen
Waltz: Matt and Flavia

American Smooth: Holly and Artem
Argentine Tango: Rachel and Vincent
Cha Cha Cha: Alesha and Matthew
Charleston: Holly and Artem/Harry and Aliona
Foxtrot: Holly and Artem
Freestyle: Alesha and Matthew/Zoe and Ian
Jive: Kelly and Brendan/Jill and Darren
Paso Doble: Holly and Artem
Quickstep: Chelsee and Pasha
Rumba: Kara and Artem
Salsa: Kara and Artem
Samba: Zoe and Ian
Tango: Kara and Artem
Viennese Waltz: Kara and Artem
Waltz: Alesha and Matthew

American Smooth: Rachel & Vincent
Argentine Tango: Kara & Artem
Cha Cha Cha: Lisa & Brendan
Charleston: Pamela & James
Foxtrot: Lisa & Brendan
Freestyle: Alesha & Matthew
Jive: Kelly & Brendan
Paso Doble: Emma & Darren
Quickstep: Pamela & James
Rumba: Pamela & James
Salsa: Kara & Artem
Samba: Zoe & Ian
Tango: Alesha & Matthew
Viennese Waltz: Pamela & James
Waltz: Alesha & Matthew

American Smooth: Kara and Artem
Argentine Tango: Rachel and Vincent
Cha Cha Cha: Lisa and Brendan
Charleston: Holly and Artem
Foxtrot: Rachel and Vincent
Freestyle: Alesha and Matt
Jive: Scott / Chelsee / Louisa
Paso Doble: Holly and Artem
Quickstep: Chelsee and Pasha
Rumba: Rachel / Chelsee / Kara
Salsa: Kara and Artem
Samba: Ali and Brian
Tango: Rachel and Vincent
Viennese Waltz: Ali and Brian
Waltz: Alesha and Matt

American Smooth: Colin and Erin, Harry and Aliona
Argentine Tango: Mark and Karen
Cha Cha Cha: no favourite, not generally a memorable dance for me
Charleston: Chris and Ola
Foxtrot: no favourite
Freestyle: Tom and Camilla
Jive: Jill and Darren
Paso Doble: Austin and Erin
Quickstep: Colin and Erin
Rumba: Colin and Erin
Salsa: Matt and Flavia
Samba: Aled and Lilia (Christmas)
Tango: Jason and Kristina, Zoe and Ian
Viennese Waltz: no favourite
Waltz: no favourite