My first encounter with One Piece was 4kidz... Absolutely destroyed the series for me for years. I got into Manga 4 years after that, read everything, and avoided One Piece like the plague. Suddenly I got nothing to read, and was like, "what the hell, I'll read this garbage". BEST DECISION OF MY LIFE! I fell in love and One Piece has became my instant favorite. I LIVE for One Piece, unlike other series, their is just sooo much detail in the story, everything connects so well. I just can't get enough.
Also to bleach-No1-manga... Bleach is the MOST overrated series of all time. No plot, jack all for character development, and it's the same crap over and over with with absolute no meaning. Unlike One Piece their is a grand scheme, and everything is being set up for the end. For example, he goes place to place, kicking ass, making new allies where he goes. Everything connects! He fights Shichibukai, Marines, other Pirates. Declared war on the World Government, Big Mom, Doflamingo, pretty much all the Yonko, we seen the war at marineford, and the kind of force it took for even a Yonko to try and fight them. His dad also leads an army of revolutionaries, Oda is setting up for a HUGE battle, bigger than Marineford, with all of Luffy's allies. Just so many little tidbits in every chapter that lead up to huge parts of the story.
Bleach on the other hand.... I'll sum it up for ya and why it's bad.
1. Ichigo becomes a shinigami
2. Meaningless stuff happens.
3. Long training arc.
4. Ichigo gets Bankai.
5. Meaningless stuff happens.
6. Long training arc.
7. Stupid crap about Bounts
8. Meaningless stuff happens.
9. Long training arc.
10. Ichigo becomes a hallow...
11. Meaningless stuff happens
12. Long training arc
13. ICHIGO IS A QUINCY?! NO WAY!
Yeah it got beyond stupid there... First hallows are the main threat, then soul society, and hallows lose their importance, than bounts, than arracars or whatever, then he is protecting hollows from the quincy. I seriously don't see how someone can put Bleach over One Piece.