For all of you that dont seem to reliaze the difference on sub HD 360 version as opposed to the full 720p PS3 version here's a video (courtesy of GameTrailers):

Final Fantasy XIII Video Game, 360/PS3 Comparison HD | Game Trailers & Videos | GameTrailers.com

Is this what you want happening on vXIII? The CG scenes on PS3 are noticably better, but gameplay is pretty much the same!