It's quite a popular one on the internet and the opinions on it range quite a bit. I'm of course talking about:
from One Piece VS
from Fairy Tail.
Who do you think would win this battle? I personally go for Zoro. While I still have much to see of One Piece I have seen what Zoro is capable, even before the timeskip which only made him stronger (being trained by the legendary Dracule Mihawk, the best swordsman in the world will do that).
Pick your fighter and give me your arguments.