depends on your choice.....
firstly, watch out for platform exclusive titles.....
Xbox360 has exclusives like halo,forza,alan wake,gears of war,etc.
on the other hand ps3 has exclusive uncharted,infamous,gran turismo, etc.
Secondly, hardware wise...both platforms perform well and almost identical in most modern games & graphics difference in some games is not at all that deal breaker...some game look better on a ps3 while some look better on xbox360.
Advantages of ps3 over Xbox 360:
1. Blu-ray drive.
2. Free online play.
3. Playstation ‘move’ is more accurate and lag-free than kinect.
Advantages of Xbox 360 over ps3:
1. Though xbox live is a paid service, it is a lot better than playstation network.
2. Better gamepad (it’s my personal opinion)
3. Though kinect lags, but ….you know…you are the controller…
In the end its your personal choice..
I prefer ps3 only because of its exclusives.…