well, if you have both systems (ahem..) buy it for PS3...if you were waiting for FF13 to buy a HD console, well buy a PS3 by all means. If you're stuck with a 360 to play your beloved FF13, then buy FF13 and enjoy it (and if eventually you buy a PS3 for any other games, buy FF13 again since you love it so much and need to have the best version :)