Board Thread:Versus Debates/@comment-26005711-20160614093346/@comment-5547501-20160619060852

Just saying, there's no proof Teen Sasuke's boost actually did anything meaningful to give him an advantage over Adult Sasuke. Both have the same jutsu's, the latter didn't use them because he couldn't, but despite having one arm he showed better taijutsu then anything Sasuke did since getting the Rinnegan. Plus, shadow clones, even if only used temporarily, can massively affect the battle if they are all using Susano'o. There is literally nothing Kaguya fight Sasuke can do that Adult Sasuke can't, but the opposite is true, seeing as younger Sasuke never dimension hopped or used Shadow Clones.

Ultimately, the Prime Sasuke is teen Sasuke, though not from Hagoromo (which has no evidence in actually affecting his traits) but Bijuu-Susano'o Sasuke, because that mode gives him his strongest raw-power attack as well as the chakra levels of the Ten Tails.