I'm thinking on getting a 360 just to play the original NG2 too haha, the lack of some gore is a minor letdown, but nothing dealbreaker; still i like much more the PS3 graphics, some of the outfits looks really awesome in NGS2 (i'm playing with the Fiend Ryu now on my Mentor playthrough). But to be honest, with the time i've get used to the lack of flying body parts, and started to appreciate the "light" gore on NGS2. Still, i want to play more the 360 version, it was the first version of the game i played but i never had a chance to went back and play more, i've heard that NG2 has some balance issues on Master Ninja Mode because of the cheapness of incendiary kunais, bazooka-men and explosive arrows.
Oh, and by the way. I highly recommend NGB/NGS and NG2/NGS2 for any fan of hack'n'slash games. It's the only hack'n'slash that i can say that i love as much as i love Devil May Cry.