"rock hard body"? You serious? All attacks slip through obito. Obito doesn't use ET? Yeah gedo mazo takes few minutes but so does kirin. Obito takes this LOW difficulty
Yes, I'm serious. He's tooken a weakened rasengan from KC Naruto to the face, a headbutt at full power to the mask that didn't even crack, and a rasengan to the shoulder, plus everything else I'm forgetting. He's strong. And Kamui is a defensive move, not an offensive unless he just leaves him in there to starve. And if Gedo takes a while to summon, then he can't use it.
And no, even if he did win, it wouldn't be low diff.
Kirin reqires a lot of preparation.Since when does summoning take minutes??It's instantaneous.Obito has rinnegan,MS and knows uchiha kinjutsu better.More importantly he knows all of sasuke's abilities.On the other hand sasuke has never seen obito fight.He doesn't know what kamui is.
Sasuke<obito
I know the summoning is instant, but I mean awakining him and everything. Have we ever even scene how it is awoken? And when 2 characters battle, I just take all of their abilities and feats and spar them against each other. Doing this, Sasuke would win. And he's at least see him teleport, so his reflexes can help him avoid it. Plus, he's fast.