Uchiha brothers wins for sure.. in the fight between Madara and Hashirama, Madara didn't really want to kill Hashirama just to gain the name of "Victory!" on his tale.. he only fought him to gain access to his powers, that's his main reason of the fight.. I think it's the reason we see Madara doing crazy things now.. like replace his limbs and heals up incredibly fast.. it's because he has the power of Hashirama along with his Uchiha powers, there are things that may yet to come we don't even know about.
Prove, read what Madara's saying to Konan in here:
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