Best Series without a doubt is serie 11 when Abbey won. There was something for everyone I think. All the finalists were likable for the most part IMO. It just seems so improbable and laughable to think that Abbey would win at the beginning; even when she was starting to gain momentum starting week 7, I was settling for 2nd or 3rd place; I just couldn't believe it. Most shocking result for me EVER. I remember being so, so happy

. I have watched strictly for a long time but I have NEVER rooted or liked a contestant/partnership as much as I liked her . I was just so happy. What made me the most happy about her win was the fact that she proved her detractors wrong; a lot of people changed their opinion about her; even till this day. If there was ever a contestant who has gained the most from the show individually (not money, or more work...even though she gained those), it would be her. Anyways, I can ramble on and on about her but her series was a rollercoaster of emotions from me and for it to end with a victory was just the cherry on top of the cake.
Prior to Abbey it was Series 5 with Team Matheesha

(Alesha and Matthew ) .So Series 5 and 11 are my favorites with 11 being my MOST favorite

.
Hmmmm....I dont really have a " worst series " because as cheesy as this sounds I do enjoy strictly no matter what
but if I have to pick one it would be series 12. Just a boring series; with a boring set of contestants and boring set of top 5/6. I couldn't wait for it to end. It was actually the first time that I stopped watching the show after week 7 or 8; I didnt even watch the finale


....I did not like Caroline as a contestant and her partnership...just a weird series for me; I did not like ANY of the finalists partnership; I warmed up to Kevin/Frankie but even then it was Meh...
Then you had Sunetra and Brendan with a weird dynamic; I liked Sunetra but imo Brendan (who is someone that I really like ) couldn't seem to bother ; it seems like he wanted to be voted off every week and dreaded being in the competition any longer; I dont know what was going on with him that series; I felt bad for Sunetra.
Then you had Pixie who was good but couldnt connect with the public no matter how hard she tried
Kevin and Frankie : bland, bland, then OTT kevin to compensate the blandness urghh...she seemed really sweet but this one wasnt working for me as well
-Tom and Iveta who were a disappointment
-Jake and Janette that I couldnt stand

and who were propped to the high heavens every week

. I was so happy to see them not make the finale; Only redeeming quality about that series
-I already mentioned Caroline and Pasha
-Simon and Kristina who had the same Trent and Pixie problem
-Annoying Aljaz and Allison
I could go on about Series 12..so yeah this takes the cake as the worst series imo; The top 7 or 6 couples were bland, uninteresting, overrated...and the standard of dancing was lower imo but the marks did not reflect that; they were particularly inflated that series IMO.
At the other end of the spectrum ,the mediocre dancers had great partnerships and didn't last long.
I still think that this is the first time that the producers got it wrong castings wise imo; why would they cast Frankie, Pixie and Caroline in the same series; these 3 just seem interchangeable for me; on paper, in terms of personality as well.
I did not mean to make this long
so to sum it up,best series : series 11. Worst series: series 12