Para gamespot la versión de 360 es superior por un par de motivos:
Unfortunately, some technical glitches and unstable frame rates plague both the Xbox 360 and the PlayStation 3 version of the game.
Those frame-rate problems hit the PlayStation 3 version of the game significantly harder than the Xbox 360. Other than the choppy frame rate and slightly sharper graphics on the PlayStation 3, some of which is only noticeable when using an HDMI cable on a high-end HDTV, the games look roughly the same. But there are other, more significant differences between the two versions. The Xbox 360 version has online support for up to eight players, including a new game mode called walls, which gives your skater a tall trail behind him that behaves sort of like the light cycles in Tron--if you hit another player's wall, you're out. The Xbox 360 version also uses its online support to present a lot of different online leaderboards. Much like Amped 3, many of the different goals in the game have their own individual leaderboard, which adds some competition to the single-player game and gives you a reason to keep on playing the same goals again and again. Without this, the PS3 version feels sort of flat by comparison.
The PlayStation 3 version of the game distinguishes itself by offering complete support for the Sixaxis controller's motion-sensing abilities. You can set it to just control functions like balancing, if you like, or you can move and execute tricks with it, as well. It works, but it lacks the precision offered by the D pad, so it's a neat experiment that's pretty good at showing off what the Sixaxis is capable of, but you probably wouldn't want to play through the game this way.
Básicamente, que los problemas de framerate son mucho más acusados en PS3 y que la 360 tiene juego online hasta 8 jugadores.
La PS3 tiene soporte para el sixaxis, pero como es menos preciso que el D-pad, no lo usarás.
Falta poner que en la 360 hay rumble y en la PS3 no, pero eso ya lo sabemos.