Madara had just aquired ems and went to fight hashi (and possibly other senju seeing them injured) and fought for 24 hours before he fell. Sasuke would run out of chakra against madara after 10 min max 20 min.
Madara was so gifted from indras descendants that he awoke the rinnegan.
If power scaling was done properly
Bsm naruto would be close to madara level.
Rinnegan sasuke would be close or equal madara level.
Rinnegan madara would be equal to sof 6 path both.
And jyubi madara is on another level of solo but after making him on another level kishi decided to downplay him.