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.

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

Reads · Pure Mind Games
A social deduction game about deceiving and unmasking human players.
Among Us leans Reads (Pure Mind Games); Death Note: Killer Within leans Reads (Pure Mind Games).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Among Us
Tasks are trivial minigames
Death Note: Killer Within
Movement and tasks need no twitch skill
Among Us leans a little harder on reads, though the gap is small.
Among Us
Lying to and reading humans IS the game
Death Note: Killer Within
Reading and deceiving human players is the social-deduction core
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Among Us
Role assignment and kill information hidden
Death Note: Killer Within
Hidden roles and identities are concealed information
Death Note: Killer Within leans a little harder on optimization, though the gap is small.
Among Us
Task routes and vent logic give small edges
Death Note: Killer Within
Task efficiency and voting logic offer some system play
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.