Madara is simply a tier above Sasuke not only in power, but in shinobi aptitude, fighting smarts, and skill. This is why Madara's Chibaku Tensei was so godlike and far superior to Sasuke's, as well as his ability to draw on so many Limbo clones and all of his other skills. He simply is a more advanced dojutsu user.
It is unknown if he shall surpass Nagato's usage of the legendary eye, however. Nagato utilized multiple paths at once as well as developed an entire fighting style around it and nuked an entire village on his deathbed. We'll see how it plays out, or if Sasuke's Rinnegan is buffed to compensate.
It is unknown if he shall surpass Nagato's usage of the legendary eye, however. Nagato utilized multiple paths at once as well as developed an entire fighting style around it and nuked an entire village on his deathbed. We'll see how it plays out, or if Sasuke's Rinnegan is buffed to compensate.