Madara is immortal and could have a more powerful Susanoo than Sasuke, because even him he has the powers of Rikudou, and Juubi, much better of bijuu separated.
Also he has Mokuton (who extended in all 5 nations after the Tsukuyomi), Limbo that can perhaps use Susanoo, mokubunshin, jutsu rinnegan, senjutsu, others jutsu etc etc
Please, Naruto and Sasuke can not win 1vs1. Overall it is stronger.
Sasuke is not Kaguya, can not use the dimensions in battle every time he wants.
He uses the dimensions how did he do Obito with kamui
Madara showed nothing compared to Naruto and Sasuke. After taking both rinnegan, he has not even fought. He used two jutsu to distract them and use the Tsukuyomi.
Does not have merely the half chakra of Rikudou, was Juubi jin, if Naruto and Sasuke they showed all those things at the end of the manga, imagine what he could show him.
Even if you do not accept it, deal with it lol.