Xbox 360
Gears of War 2. The best shooter out on any console.
That is because they didnt try make it as hardcore as PC shooters, its 3rd person, there is a lot of stratergy and context buttons (which consoles excel at), adn there isnt a billion weapons.
Its a very well thought out game, and it really deilvers.
The only downfall is the glitch abusers, getting killed by an invisible guy, or a guy ontop of a massive building is a bitch. Luckily i can just grab my lagswitch, and a couple of grenades, and tag him with minimal effort.