head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is variance, and it is a single point.

Execution · Competitive PvP
High-speed tag-team execution and human prediction in gleeful early-Versus chaos.
Execution · Grand Arena
A hero shooter where teams brawl over objectives using locked ability kits.
Marvel vs. Capcom: Clash of Super Heroes leans Execution (Competitive PvP); Overwatch 2 leans Execution (Grand Arena).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Marvel vs. Capcom: Clash of Super Heroes
Chain combos, assists and infinites demand fast precise hands
Overwatch 2
Aim and ability timing decide most duels.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Marvel vs. Capcom: Clash of Super Heroes
Baiting a human's assist call or super is the duel
Overwatch 2
Adaptive enemy comp counters and ult baiting.
Overwatch 2 leans a little harder on variance, though the gap is small.
Marvel vs. Capcom: Clash of Super Heroes
Hidden characters aside, everything is public
Overwatch 2
Minimal randomness, mostly map and matchmaking.
Overwatch 2 leans a little harder on optimization, though the gap is small.
Marvel vs. Capcom: Clash of Super Heroes
Team composition and infinite-combo knowledge define the meta
Overwatch 2
Comp building, ult economy, and cooldown tracking.
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.