Yamato from Megaton has a cool robot and he can actually fight rather well in his human form. It’s no exaggeration to say that he’s one of the more competent human kids out there. Still, he’s not quite ready to be dealing with Yamato from One Piece yet. Her abilities were enough to take on a Yonkou and she has an evolved state. With her speed speed and power this fight will be quick. Yamato wins.