Board Thread:Versus Debates/@comment-24168857-20150708081120/@comment-5407586-20150708083857

Whether we like it or not, Naruto's gotten pretty rusty. Even Kurama commented on how its jinchūriki lost the battle instinct. Sasuke on the other hand travelled through dimensions and kept himself in shape. So Sasuke right now is stronger than Naruto. Another reason is that Naruto seemingly has a weakened Six Paths Sage Mode, without Truth-Seeking Balls (I don't think he lost the other eight tailed beasts' chakra and abilities, though), while Sasuke even got better at using his Rinnegan (travelling through dimensions is a thing he couldn't do in the War).