Aatrox vs Mordekaiser truely feels like a "Jojo vs Dio" matchup
Very few matchups feel 100% even. Usually, one side has an advantage.
However, this is a matchup thats 100% skill. Both champs can destroy the other if they predict movements well, both are sturdy, and both have strengths that align each others. its a matchup I genuinely enjoy.
The second one I can think of that comes remotely close would be Darius vs illaoi, but its usually one sided after the 1st kill