I think the One Piece anime wouldn't suck if the animators were at the level of fandom that the manga forum frequenters on this site were at. I'm sure all of us manga readers, when we read our weekly chapter, see in our heads a One piece anime that flows perfectly, and has an awesome video game-like soundtrack where all the characters have thier own fitting theme rather than the same few repeatative tunes over and over every episode.
So much better could have been done. So damn much.
My friends when they get into the One piece anime and tell me about it, make me feel sad because although they may be happy in thier own little world, they didn't see the story unfold as great as I did.