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

Execution · Competitive PvP
Large-scale combined-arms shooter with aim-heavy gunplay.

Execution · Grand Arena
Hero shooter with team-up ability synergies.
Battlefield 2042 leans Execution (Competitive PvP); Marvel Rivals 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.
Battlefield 2042
Recoil control and aim across long sightlines
Marvel Rivals
Hero aim and ability timing
Marvel Rivals leans a little harder on reads, though the gap is small.
Battlefield 2042
Vehicle and squad PvP rewards prediction
Marvel Rivals
Team-fight cooldown trading is prediction
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Battlefield 2042
Chaotic 128-player skirmishes add noise
Marvel Rivals
Map and team comp roll affects
Marvel Rivals leans a little harder on optimization, though the gap is small.
Battlefield 2042
Loadouts, specialists, vehicle synergies matter
Marvel Rivals
Hero synergies and team-up combos deep
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.