Zorro and Guts absolutly not similar your whole point about armour is not valid, case Guts got a quality to wear his armour, he was a goddamn monster even before he got it, he survived eclipse, he fought apostles and he killed who knows how many thousands of demons. And with in fact only one arm in tact. Thers nothing wrong about Guts winning this.
I am too was voting for Zorro, case...how i put this... i wanted someone with selfdiscipline and a goal/way to win...his badassesness is not in about his ability to kill stuff, but in hiss attitude towards it.
The best moment of Zoro is without any doubts was in Thriller Bark:
http://www.mangapanda.com/103-2592-2/one-piece/chapter-485.html
Just wanted to give some credit to the second swordsman in this poll (he is still on his quest to become number 1, afterall).
And congratz the Guts ofcourse ^^ Just let him have a moment of joy in his grim quest of a bloody fight against destiny and his fallen old friend.