Thinking about my next ps3 game?

So its time again to buy a new game as i have finished all my games that i currently own, i have been really thinking about buying uncharted drakes fortune, or bioshock. The newest games that are coming out shortly look amazing from Resdient evil 5 to Killzone 2 i sure the future is bright for the ps3.

 

Any suggestions guys of which game i should but as i am really looking forward to a new challenge guys thanks