Not sure if I played 10 games from 2010, but here goes. (I'd write reasons but I am awful at laying my thoughts out coherently)

10 - Alpha Protocol

09 - Heavy Rain

08 - Super Meat Boy

07 - Red Dead Redemption

06 - Gran Turismo 5

05 - Demon's Souls (I am English...)

04 - Metro 2033

03 - Bayonetta

02 - Assassin's Creed: Brotherhood

01 - Mass Effect 2

A few more awards.

Best 2009 game I played in 2010 - Dragon Age: Origins.

Probably my favourite game from 2009 anyway, this or Uncharted 2, which I also played this year.

Best 2008 game I played in 2010 - Mass Effect.

Worst game of 2010 - Worst game I bought and played through entirely would be FFXIII.

Platform I kinda wish I'd ignored less - DS

Game I wish I'd played but for the life of me cannot justify playing on the Wii - Super Mario Galaxy 2

Best part of anything ever - The bit in Bayonetta where Bayonetta fucking dances for 5 minutes straight. (There are a lot of parts in that game that could go in this section)

Can't think of any more right now but if I do or if I get suggestions, I shall add them.