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

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

Execution · Grand Arena
A third-person MOBA where skillshot aim meets MOBA mind games.
Marvel Rivals leans Execution (Grand Arena); Smite leans Execution (Grand Arena).
Marvel Rivals leans a little harder on execution, though the gap is small.
Marvel Rivals
Hero aim and ability timing
Smite
Third-person skillshots raise the aim floor.
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
Smite
Jungle invades and ganks require opponent modeling.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Marvel Rivals
Map and team comp roll affects
Smite
Buff timers and minor RNG only.
Smite leans a little harder on optimization, though the gap is small.
Marvel Rivals
Hero synergies and team-up combos deep
Smite
Builds, relics, and rotations are theorycrafted.
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.