pretty soon there will be many new xbox 360 games and i cant really decide which one i should buy. my choices are:fable 2, fallout 3, far cry 2, and of course, call of duty. so i was wondering which one i should get, and why?

Wait until they've all been rated and pick the highest rated one.

Call of Duty: World at War. You are usually guaranteed to be pleased by this game as most COD games always live up to expectations. The other games you have listed like Far Cry 2 are good but probably won't come close to COD: WAW.

It depends which genres you like better. Far Cry looks like nothing too special, and call of duty world at war is not going to be that great either. If you haven't noticed, they are starting to make every other game suck (2 was good, 3 sucked, 4 was good, 5 will suck) because of the fact that they switch developers. I would go with Fable 2 or Fallout 3, depending on what type of RPG you like. Fable is more comical and cartoon-like, while Fallout will be more serious (like oblivion was). It also depends whether you like a game based in a fantasy world in the past or an RPG about a futuristic disaster.

It's your choice though I like Call of Duty: World at War