i have to go with naruto with the ninja stuff its probably the best of the 3 i havent seen one piece thobut ive seen the other 2

Naruto would be number one for me. I've never watched Bleach or One Piece, so I don't really have much of a choice.

[size=xx-large]ONEPIECE ya

One Piece is hands down the best. Naruto and Bleach can't compare. The reason? Naruto and Bleach have a few epic moments for the sake of being epic (every time someone gets a new skill it's like "omgthisisawesome" whereas One Piece is consistently epic.

Another reason is the characters, just off the top of my head from Naruto I pretty much only like Itachi and Jiraiya. From Bleach Kenpachi. Everyone else is just "meh", cause the characters have no story, they're just there for the sake of being there...with One Piece you really get the chance to connect with the characters, you find out about their past, you grow to love them.

For the people who've never watched or read One Piece, I highly recommend it. The early animation/art style might seem bad (well, it's the oldest of the 3) but the story is just amazing.