head to head
Neither is simply harder - they are hard in different places. Among Us demands more reads; Marvel Snap demands more optimization.

Reads · Pure Mind Games
A social deduction party game where crewmates vote out hidden impostors between chores.

Reads · Grand Arena
A fast card game where the snap mechanic makes reads central.
Among Us leans Reads (Pure Mind Games); Marvel Snap leans Reads (Grand Arena).
Among Us leans a little harder on execution, though the gap is small.
Among Us
Tasks are trivial minigames
Marvel Snap
No execution component
Among Us leans clearly harder on reads.
Among Us
Lying to and reading humans IS the game
Marvel Snap
Snap/retreat decisions are pure opponent psychology
Marvel Snap leans clearly harder on variance.
Among Us
Role assignment and kill information hidden
Marvel Snap
Hidden locations and draws drive swings
Marvel Snap leans clearly harder on optimization.
Among Us
Task routes and vent logic give small edges
Marvel Snap
Deck construction and curve still matter
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.