We actually never saw the true power of the 4 Kage, always believed some hypes.
I really want to see them on the battlefield, specially Senju Hashi and Minato.
OMFG I WAS RIGHT!!!!!! i knew it, i tried to spread around the theory that the people who know everything were the hokages but alot of people doubted me. I had so many facts to prove it, i knew for sure it wasnt the elders because as soon as sasuke pulled out that scroll oro knew exatcly who he wanted to talk to so that meant u needed that scroll to talk to them. I had this theory the minute i read the oro resurrection chapter. i feel fulfilled
We actually never saw Hashis true power. I dont see how he defeats ems Madara+Kurama with some wood. There has to be more i guess.
4th and 2nd is kinda totally unknown. Srsly, i dont think Minato only has rasengan ftg and some clones ._.