Board Thread:Versus Debates/@comment-26388300-20160508052012/@comment-734582-20160508111514

White Zetsu.

With the ability to take on anyone's appearance and chakra, he can exploit everyone's relations, hide in the earth when needed, traverse vast distances as needed. He doesn't need food. He can outlast everyone. Even the likes of Hashirama would be vulnerable to White Zetsu appearing as, i dont know, Tobirama and cutting his head off then chopping him up like an onion.

It can only be sense by Mito and Naruto, so he only needs to make sure they're dead or not around.

So, White Zetsu is the winner. (or black/white zetsu if you count them as one character)