Obito with Konan is overwhelming and good presented and fact
while
Madara with other opponents like Naruto, Obito, Minato and all involve is underwhelming and bad presented. For Madara case it hard to judge if Madara trully use his true power or being nerf although this in the manga as fact.
because logical speaking JJ madara will have no problem to kill them, where is juubbito style juubi dama or TSB manipulation in Madara arc, sure that leave very big plot hole there, but becoming manga fact
judge it by yourself for who against Madara here
That slso can be a case for Kaguya
As Kishi want to finished this manga as soon as possible, even disgraceful or unlogical writing can happen here just to defeated JJ madara as soon as possible for Kaguya arc next and Sasuke X Naruto after that