the kage win, easy diff. think about who he will have to go against and you'll stop fanboying for a sec. he has to face the third raikage, and his son. which means he's gonna have to spam the shit out of his s/t jutsu, which he can only do so many times. he will most likely have to stay in susano for an extended period of time. which will just be a big target for hashirama. with minato and tobirama using their flying thunder god, sasuke just gets slaughtered. half the kage dont even need to join the battle. maybe more than half.
meanwhile naruto's in the corner laughing saying, "bet you wish you had that bijuu chakra again?"