Board Thread:Versus Debates/@comment-34656247-20180726110937/@comment-36006024-20180726202546

We still don't know what Prime Hiruzen was capable of, so honestly any point in speculating is useless. he was said to be the strongest Kage of his time (forgetting the strongest Hokage because we know that is not true).

That means he was stronger Than 3rd Raikage, Ohnoki, 3rd Mizukage and 3rd Kazekage (these seem to be the most likely candidates to be the Gokage in Hiruzen's youth)

He's a complete enigma.