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
Punishing rally car control at the limit, supported by setup and stage knowledge.

Execution · Pure Mechanics
A 3D platformer whose joy lives in tight movement and capture-driven traversal.
Dirt Rally leans Execution (Pure Mechanics); Super Mario Odyssey leans Execution (Pure Mechanics).
Dirt Rally leans a little harder on execution, though the gap is small.
Dirt Rally
Unforgiving car control on loose surfaces is the entire test
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.
Dirt Rally
Solo time trials against the clock, no adaptive rival
Super Mario Odyssey
No adaptive opponents whatsoever.
Dirt Rally leans a little harder on variance, though the gap is small.
Dirt Rally
Weather and surface degradation vary between stages
Super Mario Odyssey
Almost no randomness in level design.
Dirt Rally leans a little harder on optimization, though the gap is small.
Dirt Rally
Pacenote interpretation, setup tuning and stage memorisation
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.