Brace yourselves more Naruto fanboys are coming, I guess I'll argue for sasuke's side.
First of all they are equal but apparently since people only look at the surface ill dig for you guys.
People may question how saauke plans to destroy the tail beast chakra in Naruto, I've been wondering if Naruto's sun mark gives life think of what sasuks's moon mark can do if it's triely yin and yang the moon must siphon energy most likely how saauke van touch the rods (maadara's) undisturbed it cut through madara, etc. Truth seeking balls are kind of irrelevant as Naruto rarely uses that offensively, he usually uses it for the rods. Healing powers I feel that may get countered by sasuke's moon mark, it's weird but I feel like it's true sasuke's moon would be death ergo anti healing but since Naruto has healing it won't poison him or anything but this is speculation. Naruto's speed is supposed to match sasuke's teleportation, a full argument for sasuke is vague since we don't know ALL he can do. But let's imply he has all the paths of pain techniques minus gedo mazou he could absorb all of naruto's rasengans/chakra attacks, Naruto blitzing sasuke is unlikely ad a basic ability of the sharnningan is to predict movement by the slightest muscle tension so he'd see it coming. Avatar mode for Naruto isn't even confirmed......anyway lets say it is, it would be on the same level as perfect susano sasuke. Sasuke probably would have an amped shinra tensei. Naruto can also get assistance from the chakra of the tail beasts inside him in nit sure how saauke would handle that but so far anything is possible.