Khagan and Leonidas seem to me about the same. Both tough guys with sword and shield. I think I would give Khagan the edge due to wearing arm protection instead of needlessly flexing.
Kageburado has one of the most realistically sized weapons. Even though Azlar is a buff lion, I don’t think he could actually dual wield those cleavers. And I doubt his fur offer a better protection than Kage’s armor