Greetings and welcome- I am a huge anime maniac, however, about 'One Piece' I must say I agree whole-heartedly with John Young. One Piece just isn't a pirates bottle o' rum, iffen ye catch my drift. I myself prefer 'Pirates of Dark Water' over OP.
The pirates aren't the best thought out characters- especially Arlong and his 'mermen.' And Monkey D. Luffy... honestly? Really, I like my share of Anime, but One Piece just hasn't made my list. Sorry.