Because it had a central theme.
Bleach >>>> Shinigami
Naruto >>>> Ninja
One Piece >>>> Pirates
Easy to see why they're the big three since they have a strong focus and theme and aren't all of the place. By all over the place, I mean they don't stray far from the ninja/shimigami/pirate thing they got going. Plus they're all DBZ rehashes, so people like that as well.
Zero Escape: Virtue's Last Reward = best game ever made.







