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 · Grand Arena
Hero shooter with team-up ability synergies.

Execution · Grand Arena
Team hero shooter blending FPS mechanics with ability economy mind games.
Marvel Rivals leans Execution (Grand Arena); Overwatch 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 Rivals
Hero aim and ability timing
Overwatch
Hero aim, movement, and ability timing
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Marvel Rivals
Team-fight cooldown trading is prediction
Overwatch
Ult tracking, flanks, and baiting human teams
Marvel Rivals leans a little harder on variance, though the gap is small.
Marvel Rivals
Map and team comp roll affects
Overwatch
Minor spread and matchmaking noise
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Marvel Rivals
Hero synergies and team-up combos deep
Overwatch
Team comps, ult economy, and positioning theory
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.