Board Thread:Versus Debates/@comment-27924662-20160902005635/@comment-28300173-20160902102142

The Second Mizukage is probably the most powerful Mizukage in the history of the village, with the possible exception of jinchuriki Yagura. As we've seen, the guy is a virtuoso with water ninjutsu and that genjutsu clam summon is absolutely heinous, it's so useful.

But c'mon. Madara not only has the extra chakra bonus of Indra, but full mastery of his Susanoo. His taijutsu was advanced enough that he seamlessly obliterated much of the Shinobi Alliance when he first appeared on the battlefield. His genjutsu is masterful, evidenced by further by his natural and honed talent with a Sharingan. The man can create walls of flame so large that an entire army would be engulfed, all brought about from a single hand sign. He can summon meteors from the sky; even if the actual Mizukage and his clam are invisible on the battlefield, it's likely that a falling meteor or two will strike them.

Mu was considered the equal (or, by Gaara, the superior) of the Second Mizukage and yet Madara intimidated both Mu and his apprentice Onoki. I don't think the situation here would change with the Mizukage. Madara wins.