Explanation: It was stated that hiruzen was the strongest of the five kage during his time as hokage so obv ay (bee's brother) was already raikage during kc and hiruzen was also the hokage during this time; so it's safe to say that hiruzen wins
Hiruzen being strongest kage during his 2nd tenure might have been retconned, kinda like Hashirama but the opposite. Old Hiruzen most definitely wasn't the strongest kage during Konoha Crush, Ay and Onoki would both stomp him
