Better get a PS3. The device looks more serious than the xbox 360, there are great exclusives like Uncharted, Heavy Rain, God of War, etc. (there are simply no similar games on the xbox 360 and PC) PS3 has 3D support, which is also important. But if you already have a PS3, you can also buy an xbox 360. Still, the multiplatform is better on it, the online service is better. There is Fable 2, Halo, Gears of War 2-3, but these exclusives lose out to Sony exclusives.