I haven't gotten to play a lot of the games on most people's top 10 lists yet either because I just never got them or I don't have a 360. But here's some of my top games for the year.
Metroid Prime 3: Corruption
World of Warcraft: The Burning Crusade
Legend of Zelda: Phantom Hourglass
Guitar Hero 3: Legends of Rock
Resident Evil 4: Wii Edition (yeah an old port but its still great)
Definitely need to get Bioshock for PC, Super Mario Galaxy for Wii, and eventually I'd like to get a 360.