naruto if he does not run out of chakra ( before im flamed, im saying this because it wont be a short battle but a rather long one if his up against the 5 kage)
I don't think Naruto has the experience yet to beat the Gokage. Though he might gain it in his battle with Madara. Just have to wait for more feats I guess.
the five kage. i mean i am a big fan but the only reason that madara defeated the five kage was because he was edo. with that dust release he could have been dead.
Numbers aren't an issue for Naruto. His clones were already defeating stronger Kages, although they had support and now he has the best support which is himself. The kages can't take out a km clone individually, he can just out number them. When you bring bm Naruto with his tbb it becomes a comfortable win for him.