Arthur Morgan vs. John Marston

Round 1.

Hand to hand only.

In character.

Both start on horses, 100 meters apart.

Round 2.

Access to weapons / guns.

Bloodlusted.

Morals off.

Takes place in a bar.

Round 1: Arthur is bigger he wins

Round 2: Prime Arthur vs prime John is 50/50, they might both die

Bump

Round 1: Arthur takes a few hits but still wins comfortably.

Round 2: if we're talking game mechanics, John wins (deadeye was more OP in RD1). If we're talking strictly lore and story feats...50/50.

Eh, it’s kind of implied throughout RDR2 that Arthur is the most skilled fighter and shooter in the gang. He’s the one all the other gang members go to when they need help. Even when he is dying from tuberculosis, he is still able to hold his own against Micah.

Arthur if he is in his prime

Arthur wins round 1 and round 2 is 50/50 leaning more towards Arthur

Arthur slaughters pre Landon Ricketts John, after that its a good fight.

Arthur is better in everyway almost.

Prime versions for both? Round 1 definitely goes to Arthur, he has way better h2h feats.
Round 2 could go either way, although I'd very slightly favour Arthur in this particular scenario.

Arthur just got that big brother energy.

I reckon Arthur beats him in all rounds. The only way I can see prime John winning is if Arthur is suffering from TB but only in a gunfight

Pre TB Arthur beats an older RDR1 John in a brawl. RDR1 John headshots Arthur before he can blink in the second round.

Arthur is the best gunslinger and fighter here. He low to mid-low diffs both scenarios. There is not a scenario where John wins this.

Arthur takes CQC.

A gunfight goes either way.