In Part 1 everything was different, Uchiha's weren't so OP'd and stuff, but it seems that still some people overlook that, because if in Part 1 someone said Byakugan is the strongest Doujutsu and in Part 2 we get introduced into Mangekyou Sharingan, Eternal Mangekyou Sharingan, Rinnegan, does that fact still remain?
While Hashirama ended the whole ****ing war, he founded Konoha, he tamed Bijuu's like pets and he fought the Strongest Uchiha ATLEAST on equal term (he could've been stronger high likely)
Tobirama is a genius and he's the one who created Edo Tensei, Orochimaru just stole it and completed it, without Tobirama Madara wouldn't be walking around right now so strong and neither would this war be so intense.
What did Hiruzen do in Part 2? He wasn't even mentioned ONCE, NEVER again was he mentioned as the strongest or whatever, the only thing he's done is watching the Kyuubi with fear while waiting on Minato, a very young person who had to sacrefice his life, Hiruzen is a cocky old shit.
Minato has done everything, fought Tobi, removed Kyuubi from Tobi's control, teleport Kyuubi's Bijuu Bomb away, sealed Kyuubi.
In my eyes Hiruzen is the most useless and pathethic Kage I've ever seen, even Tsunade is more useful then him.