Board Thread:Naruto Discussions/@comment-24168857-20150419023717/@comment-5547501-20150419074954

I think it depends whether Sasuke actually uses the other powers of the Rinnegan like the Human Path. Also, if he uses the Ashura Path, the fact he only has one arm is irrelevant, since he can just replace it with a mechanical one. I'm actually wondering why he didn't do this in canon (he still might though).

With all Rinnegan powers, Sasuke could win, otherwise Naruto would, at leas for both of their Last incarnations and previous abilities. We'll have to wait for the Boruto manga/movie to see their new epilogue powers (if they have any at all).