What xbox 360 Game Should I Get?

Ok so I have been thinking of getting either Assasin's Creed, CoD4, or Bioshock

What do you think I should get

and i am open to other suggestions

well are you paying for Live?

and it really depends on what you value more, multiplayer or single player.

if you aren't going to mess around w/ multi too much go w/ bioshock.

if you plan on doing a lot of multiplayer i would go with cod4.

Im going to get live in about a week

but I value single player just as much as multiplayer

CALL OF DUTY 4

get it you will not regret ir!

Here's how it breaks down:

COD4 is only worth buying if you want to play its multiplayer (the single player is rather "meh" imo)
Bioshock is a single player only game so its a game you get if you want a high quality presentation
AC is a game you get if you're an action/adventure genre fan (otherwise you probably won't like it after the third mission or so)

So you have to decide: Do you want an amazing multiplayer experience or an amazing single player experience? And if you want single player then do you want to play an FPS or an action/adventure title?

Ok so I have been thinking of getting either Assasin's Creed, CoD4, or Bioshock

What do you think I should get

and i am open to other suggestions

alpal99