Haven't seen One Piece yet(I know I need to fix this) but my ranking
YYH > DB > Naruto > DBZ >>>>> Bleach >>>>>>>>>>>>>>>>>>>>>>>>> DBGT
DBZ gets dull a lot faster than Naruto, and Bleach was dull from the beginning for me, while DBGT is just fanfiction.
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Joyrock
Fresh from my first justified ban. Ever!