Yeah, I felt Pein couldn't take all of them. At full strength, he probably could take down Tsunade, but I am not sure about the others, but it would still be a good fight.
Pein could solo Tsunade and Nidaime. That's really the only certain thing. All five Hokage at once with Sarutobi at his prime is a bit overkill. When Shodaime has already beaten Madara who is probably at Pein's level anyway. At least back when he wasn't a 'shell of his former self.' And both Sarutobi, and Minato are stronger than Shodai is.
__________________ If you try something stupid, and it works it ain't stupid.
Well, you can't really say Nidaime when we haven't seen his full strength yet. I don't think Madara could take Pein. Yeah, Sarutobi is past Shodai, and Nidaime, as he took them at the same time when not even in is prime, he was way out of his prime, also he took Oro too, and Minato is the strongest Hokage.
Even if they're not the real bodies, it was still all of there jutsu's. I don't think, even though Oro did have control of them, Oro told them what jutsu's to use, so it isn't 100% control.
Was it ever said they died of old age? Or even how they died? Nidaime wasn't really much younger and was appointed 2nd Hokage while still young.
And its never stated the ones against Saru were weaker at all.
Never remember it being said Sho was equal to Saru. I remember a Anbu saying something about Sho being one of the strongest but Saru was hailed as the god of Shinobi wasn't he?
__________________ If you try something stupid, and it works it ain't stupid.
Was this said in the databooks? Cause I don't remember that in the manga.
What makes you think Oro was stronger? He didn't really fight Saru in the manga. And by the time Saru tried to seal Oro his chakra was down by 2/3rds not counting any of the other jutsu but shadow clones, and he was hurt and then stabbed through and dying.
__________________ If you try something stupid, and it works it ain't stupid.