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.

Optimization · Grand Arena
Modern AoE balances macro hands with adaptive multiplayer.

Execution · Grand Arena
A third-person MOBA where skillshot aim meets MOBA mind games.
Age of Empires IV leans Optimization (Grand Arena); Smite 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.
Age of Empires IV
APM and micro matter, lower than SC2
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.
Age of Empires IV
1v1 ladder vs adapting humans
Smite
Jungle invades and ganks require opponent modeling.
Smite leans a little harder on variance, though the gap is small.
Age of Empires IV
map gen minor
Smite
Buff timers and minor RNG only.
Age of Empires IV leans a little harder on optimization, though the gap is small.
Age of Empires IV
civ build orders well solved
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.