Madara wins imo.
His Katon his way better.
Kimi's CM2 durability is something that should be reckoned, not Sasuke's. He tanked Itachi's C-rank Katon (which is equal to his own) and called it little burns which is something but not very impressive. Madara's Katon is way stronger than that.
He can shed his skin once. Ok. That can save him once but it won't change the outcome.
If he summons Manda and uses genjutsu on him, Madara can simply use his own genjutsu to make Manda return to his senses. After that he would try to swallow Sasuke so... not a good idea.
Madara has proven to be adept in kenjutsu and taijutsu too.
Madara has much larger chakra reserves.
His Katon his way better.
Kimi's CM2 durability is something that should be reckoned, not Sasuke's. He tanked Itachi's C-rank Katon (which is equal to his own) and called it little burns which is something but not very impressive. Madara's Katon is way stronger than that.
He can shed his skin once. Ok. That can save him once but it won't change the outcome.
If he summons Manda and uses genjutsu on him, Madara can simply use his own genjutsu to make Manda return to his senses. After that he would try to swallow Sasuke so... not a good idea.
Madara has proven to be adept in kenjutsu and taijutsu too.
Madara has much larger chakra reserves.