first of all dude you seem to not mention the fact that madara currently on the manga has harashimas cells in him an is using them to heal along with edo tensei an hes also using wood element. we're talkin the regular madara with EMS so you i dont why you keep mentioning him taking on 5 kages because thats basically him and harashima both mixed into one body being put against themRight. That's why nagato beat itachi last time they fought... :sy: And then you're saying that they could beat Madara? The second most powerful ninja in history? Right.
You're saying minato and nagato are almost 2 times better than the current 5 kage, as madara's toying with them.
And before you say Naruto and Bee helped itachi beat nagato, all they did was destroy the Chibaku Tensei. A feat itachi could have done himself with ease. He even had time to give naruto a little lesson on battle. Clearly Nagato was not a challenge to itachi whatsoever.