What? Breed? What the hell are you talking about? He can marry Sakura or anyone he likes later on.Sasuke can't win here
Naruto is hero and hero always won and , manga is called naruto
Besides sasuke want to be hokage , if all people are in IT , how wld he change system, he can build village but can't breed people on his own
And he need naruto to undo IT , vice versa is also true, he can't dispel IT on his own....
You seem to think that Sasuke's goal is the same as Madara, which is controlling everyone's dreams to his liking. Wrong, Sasuke said he wanted a world where THEY can live peacefully in, which means not only Sasuke, but everyone. Of course people will speculate that he'll be a dictator. Well, don't judge things that haven't come yet.
If they both fight, they both die. And if they want to undo the IT, they need each other's powers, so I don't think the either of them will die; however, Naruto may win because of the plot shit, and Sasuke may also win. Who knows, it's all up to Kishi.