Probably the six paths, they have an advantage in numbers.
Actually the Asura Path would rape because he can blow himself up with the enemy, so 6POP win!
It was already said that Nagato's attacks are faster and stronger than Pain's
and I bet that they don't have that much backfire and delays.
Nagato 100%
Y'all sure? I actually think Pein is more effective with 6 separate bodies. And Nakara can revive them.
Nagato will win since he still has Gedo Mazo(unless Animal Path can summon him also), but without it i see 6Paths winning. They have advantage of number and in the contrary of Nagato, they can't be killed. Anyway i alway saw 6POP better than Nagato in a fight
You know how all of the Six paths techniques were all REALLY strong? Now imagine all of them being used, but the chakra isn't being divided into 6 bodies. Now imagine all of those techniques coming from the person strong enough to make 6 dead bodies use techniques of that caliber but faster and stronger with less chakra draining because he wouldn't need to have one use an attack while also focusing on keeping the other 5 attacking as well, he could just attack and not worry about focusing on 5 other things at the same time.