If we're talking Edo EMS Madara, no Rinnegan, no Mokuton, just Perfect susano'o and his normal array of techniques(no kyuubi), then I'll go with the Sannin. Sorry, but the Sannin are plenty enough to take on PS Madara. If we're talking straight up EMS Madara, no Edo, Rinnegan, or Mokuton, things get pretty interesting on that end, as well. There's a large degree of power differency between a Jinchuuriki and straight Tailed Beast. I'm not sure how that would work out. Would be pretty interesting, I think.