What's your favorite 360 game so far?

[1337 Gamer]

I cant decide. depends on the Genre

TPS = Gears 1
FPS = Halo 3
Racing = Forza 2
RPG = Mass Effect
RTS/Strategy =Halo Wars
Music/Rythem = Rock Band 2

Probably my favs are Mass Effect, Halo 3, Gears and Halo Wars