Rainbow Six Vegas on 360...I get so good when I'm high, that I forget I'm using the controller and just start doing shit off of thought alone...hard to explain but still cool for me.

Tony Hawk Project 8...I love doing the tricks in slow motion. (what, I skate)

NBA 2k7 because its the best basketball game on 360 so far. Still got a couple of glitches that get on my nerves when I'm high but there's nothing better than playing on Hall of Fame difficulty with the Lakers.

Edit: GTA San Andreas used to be one of them, but after getting the 360, the graphics and glitches just got on my nerves and gameplay was played out. Can't wait for the next one on the 360.