Two ms users and one FTG user i think is to much for madara...
Itachi + Minato fodderize Madara easily. Minato FTG's Itachi right next to Madara and he hits him with the totsuka blade for the win. Game over. Just like that. No diff.
Edo Madara rapes Itachi low diff.
He rapes Minato low diff.
He rapes Sasuke low diff.
Edo Madara wins low diff.