User blog comment:Grievous67/The best and worst dubs of One Piece (Top 16 dubs)/@comment-34981281-20150902034346

I prefer the FUNimation dub to the original Japanese, and I'm not going to try to convince anyone to feel the same way, but I really think the reason people feel like they speak more naturally in Japanese than in English is because they don't actually understand the words. Also, some voices do just fit better. Japanese Mr. 3 sounds like a whiney Mickey Mouse, while his English voice is a sophisticated (but goofy) mastermind. In my opinion:

Luffy - Better in Japanese

Zoro - 50/50 Tie

Nami - Better in Japanese

Usopp - Better in English

Sanji - Better in English

Chopper - Better in Japanese

Robin - Better in Japanese

Franky - Better in English

Brook - 50/50 Tie