head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Execution · Pure Mechanics
An open-world extreme sports game about carving ski, snowboard, and wingsuit lines down the Alps.

Execution · Pure Mechanics
A platformer creation tool where precise jumps and timing carry both building and playing.
Steep leans Execution (Pure Mechanics); Super Mario Maker 2 leans Execution (Pure Mechanics).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Steep
Landing tricks and threading lines at speed is hands-first
Super Mario Maker 2
precise platforming and timing required
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Steep
The mountain never adapts to you
Super Mario Maker 2
no opponents in level play
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Steep
Fixed terrain, deterministic physics
Super Mario Maker 2
minimal randomness in level design
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Steep
Line choice and trick scoring math reward study
Super Mario Maker 2
level routes and tricks solvable
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.