Because why not
Scenario 1: Strongest character he can defeat during his peak in the Golden Age Arc
Scenario 2: Strongest character he can defeat during his peak in the Black Swordsman/Conviction Arcs
Scenario 3: Strongest character he can defeat with the Berserker Armor (Millennium Falcon/Fantasia Arcs)
If necessary, make speed equal (could be for either side, doesn't matter).
Scenario 1: Strongest character he can defeat during his peak in the Golden Age Arc
Scenario 2: Strongest character he can defeat during his peak in the Black Swordsman/Conviction Arcs
Scenario 3: Strongest character he can defeat with the Berserker Armor (Millennium Falcon/Fantasia Arcs)
If necessary, make speed equal (could be for either side, doesn't matter).