Funny you should mention One Piece since 4Kids made the worst dubbing know to man with that same series.
What characters will give you an ulser by the sound of their voice? All of them. Maybe witht eh exception of Shanks, but I never imagined him with a british accent. At first I thought they gave Hawk Eyes a Jamaican accent, but I listened closer and it's french. Sanji sounds like he's from the bronx.
Not to mention the editing will make you sick, not even sea. :P
Anyways, they made sanji suck on a lollipop instead puffing on the smooth sailing 'cancer sticks' normaly know as cigarettes. And Sake' is Water and Wine is Juice. Disgrace!
I'f I left anything out, I'll let the Web Comic do the rest of my talking.
VG Cats: Lost in Translation