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 · Pure Mechanics
Reflex-timed throwing accuracy and ball economy along an accelerating rail.

Execution · Pure Mechanics
A 3D platformer whose joy lives in tight movement and capture-driven traversal.
Smash Hit leans Execution (Pure Mechanics); Super Mario Odyssey leans Execution (Pure Mechanics).
Super Mario Odyssey leans a little harder on execution, though the gap is small.
Smash Hit
Timed taps to break glass before impact decide survival
Super Mario Odyssey
Precise platforming and capture-move tech ceiling.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Smash Hit
No opponent - obstacles are preset courses
Super Mario Odyssey
No adaptive opponents whatsoever.
Smash Hit leans a little harder on variance, though the gap is small.
Smash Hit
Minor obstacle shuffling, quickly familiar with replays
Super Mario Odyssey
Almost no randomness in level design.
Super Mario Odyssey leans a little harder on optimization, though the gap is small.
Smash Hit
Ball conservation and multiball management extend runs
Super Mario Odyssey
Moon routes and movement tech learnable.
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.