Best -
Xiu Xiu – Dear God, I hate myself
Circa Survive – Dyed In The Wool
Vampire Weekend – Giving Up the Gun
Ayumi Hamasaki – Don't look back
M.I.A. – XXXO

Worst er, everything else yeh?

Best

Apology Song-JLS
The Club Is Alive-JLS (love it!!!)
Clowning-JLS
Frisky-Tinie Tempah ft Labrinth
Life Will Be Better In Spring-Jon Lilygreen And The Islanders

Worst

DIANA VICKERS!!!

Top 5-

Telephone- Lady Gaga
Pass Out- Tinie Tempah
Frisky- Tinie Tempah
Gettin Over You (original version)- David Guetta
Te Amo- Rihanna

Worst 5-
Fireflies- Owl City
Anything by Justin Bieber
Anything by Miley Cyrus
Anything by Diana Vickers
Anything by Scouting for girls

I'm gonna do 10 each, like others. I can't choose.
In no particular order:

BEST
1. Flash Delirium - MGMT
2. Crossfire - Brandon Flowers
3. OMG - Usher ft. will.i.am
4. Fireflies - Owl City
5. Where We Belong - Lostprophets
6. Gettin' Over You - David Guetta, Chris Willis, Fergie & LMFAO
7. Not Afraid - Eminem
8. Nothin' On You - B.o.B ft. Bruno Mars
9. Airplanes Part II - B.o.B ft. Hayley Williams & Eminem
10. Waka Waka (This Time For Africa) - Shakira
11. Wavin' Flag - K'Naan
12. Undercover Lover - Kids In Glass Houses ft. Frankie Sandford
13. Power - Kanye West
14. All the Lovers - Kylie Minogue

WORST (I'll do 6 to make up for that oh so cheeky 14 best)

1. Dirtee Disco - Dizzee Rascal
2. Secret Love - Lee Ryan
3. Te Amo - Rihanna
4. BedRock - Young Money (this song makes me so angry!)
5. Dirty Picture - Taio Cruz ft. Ke$ha
6. Candy - Aggro Santos ft. Kimberly Wyatt

Best

Alexandra Burke ft Pitbull- All Night Long
Usher ft William- OMG
Cheryl Cole- Parachute
The Saturdays - Ego
Aggro Snatos ft Kimberly Wyatt- Candy
B.O.B ft Bruno Mars- Nothin' On You
Katy Perry- California Gurls
Diana Vickers- Once
Ellie Goulding- Starry Eyed

Worst
Iyaz
Tinie Tempah
David Guetta

Best
1. Lady GaGa - Alejandro
2. Lena - Satellite
3. B.o.B & Hayley Williams - Airplanes
4. Marina & The Diamonds - Hollywood
5. Christina Aguilera - Not Myself Tonight

Worst
1. JLS - The Club Is Alive
2. Jason Derulo - Ridin Solo
3. Justin Beiber - Baby
4. Glee Cast - Bad Romance
5. Dizzee Rascal - Dirtee Disco

Best -
Airplanes - B.o.B/Hayley Williams

Best:

Lady Gaga - Alejandro
Lady Gaga ft Beyonce - Telephone
The Saturdays - Ego
Pixie Lott - Turn It Up
Kelis - Acapella


Worst:

JLS - The Club Is Alive
Everything by Glee
Jedward - Under Pressure
Anything by N-Dubz

Best
Lady Gaga Ft. Beyonce - Telephone
Pixie Lott - The Fall/Turn it Up
B.O.B Ft. Hayley Williams - Airplanes
Alicia Keys - Try Sleeping With A Broken Heart
Scouting For Girls - This Aint A Love Song

^ These are all really recent, there are probably some great ones from earlier 2010 which I can't think of right now.

FloDizz was Feb this year, so you could include it

Worst -

Timbaland ft Justin - Carry Out :yawn:

Top 12 of 2010[LIST=1] [*]Owl City - Fireflies[*]Robyn - Dancing On My Own[*]Kylie Minogue - All The Lovers[*]Rihanna - Rude Boy[*]Lady GaGa ft Beyonce - Telephone[*]Alphabeat - Hole In My Heart[*]K'Naan - Waving Flag (Celebration Remix)[*]Jason DeRulo - In My Head[*]Chipmunk ft Esmee Denters - Until You Were Gone[*]Katy Perry - Californian Gurls[*]N-Dubz - We Dance On[*]Sophie Ellis Bextor - Bittersweet[/LIST]* had to cut down from a list of 20, which also included Aggro Santos, Mika, Diana Vickers, Goldfrapp, Timbaland ft Katy Perry, I Blame Coco ft Robyn, Glee and The Saturdays.

The Worst Of 2010[LIST=1][*]Jedward - Under Pressure (Ice Ice Baby)[*]Tinie Tempah - Pass Out[*]Tinie Tempah - Frisky[*]Alexandra Burke - Broken Heels (she went downhill here for me)[*]Justin Beiber - One Time[*]Christina Aguilera - Not Myself Tonight[*]Kelis - Acapella[*]Mariah Carey - Angels Cry[*]Iyaz - Solo[*]Sugababes - Wear My Kiss[*]McLean - My Name[*]Miley Cyrus - Cant Be Tamed[*]Lee Ryan - Secret Love[*]B.O.B. - Nothing On You[/LIST]

Best 5:

- Goldfrapp - Rocket
- MGMT - Flash Delirium
- M.I.A - Born Free
- Yeah Yeah Yeahs - Skeletons
- Gossip - Pop Goes The World

Worst 5:

- Justin Beiber- Baby
- JLS - One Shot
- Owl City - Fireflies
- Katy Perry - Californian Gurls
- Ellie Goulding- Starry Eyed