From IGN..
"Strangely, the Xbox version of the game doesn't look too much better than the PS2 rev. Despite the fact that the Microsoft disc supports 720p progressive scan and Sony's doesn't (both do widescreen, though), the colors in the Xbox edition are noticeably washed out (more so than usual) and the treated characters look bizarrely pale as a result. But regardless of which version you're playing, the visuals could have been a lot better."