I have all three plus a ps1 and n64 and sega. I had the same question so I got them all. I would say ps2 for the amount of games. But x box has way better graphix. So it is a toss up. Also hold on a min cause ps3 is set to hit the stores soon, should have better graphix still play all the old psi and ps2 games as well. So I guess in a nut shell I would say ps3 will be the best soon. :idea: I think...............