Speaking purely on my own experiences, my interest in the Bomberman series died down quite a bit after the N64 games, so I have yet to play any new Bomberman games after the two mediocre Gamecube ones.
I would say that you go with the console that interests you more. It sounds like the PS3 interests you much more then the 360, so it seems like a no-brainer to me which one you should get.
_________________ The Local Video Gaming Lunatic
Recent stuff I'm into:
Watching: A Certain Scientific Railgun (ep.14, stalled), Hoshi no Kirby (ep. 71, stalled), Nazo No Kanojo X (ep. 8), Acchi Kocchi (ep. 8)
Reading: nothing