I own a Wii/360 but my personal feeling is this: I'd rather play 10 hours of "Holy Shit this is AWESOME" than 40 hours of "meh, it's okay I guess". (of course 40 hours of awesome is also good too)
Good luck Heavenly Sword! It may not be the game that makes me buy a PS3, but when I do cross over I will definitely pick it up.