head to head
Neither is simply harder - they are hard in different places. Beat Saber demands more execution; Super Mario Odyssey demands more optimization.

Execution · Pure Mechanics
VR rhythm game about slicing color-coded blocks to music with lightsabers.

Execution · Pure Mechanics
A 3D platformer whose joy lives in tight movement and capture-driven traversal.
Beat Saber leans Execution (Pure Mechanics); Super Mario Odyssey leans Execution (Pure Mechanics).
Beat Saber leans clearly harder on execution.
Beat Saber
Pure full-body rhythm precision at speed
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.
Beat Saber
No opponent of any kind
Super Mario Odyssey
No adaptive opponents whatsoever.
Super Mario Odyssey leans a little harder on variance, though the gap is small.
Beat Saber
Patterns are fully known and fixed
Super Mario Odyssey
Almost no randomness in level design.
Super Mario Odyssey leans clearly harder on optimization.
Beat Saber
Swing-angle scoring technique and map memorization
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.