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
A reflex-driven isometric runner about dodging hazards at high speed.

Execution · Pure Mechanics
A 3D platformer whose joy lives in tight movement and capture-driven traversal.
SegaSonic the Hedgehog leans Execution (Pure Mechanics); Super Mario Odyssey 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.
SegaSonic the Hedgehog
Trackball reflexes dodging hazards at speed 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.
SegaSonic the Hedgehog
No opponent, only environmental traps
Super Mario Odyssey
No adaptive opponents whatsoever.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
SegaSonic the Hedgehog
Hazards are fixed once a course is learned
Super Mario Odyssey
Almost no 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.
SegaSonic the Hedgehog
Memorizing the optimal route through each stage helps
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.