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
Infamous climbing game where one slip of the hammer undoes hours of progress.

Execution · Pure Mechanics
A PC rhythm game where matching colors on a spinning wheel turns charts into analog choreography.
Getting Over It with Bennett Foddy leans Execution (Pure Mechanics); Spin Rhythm XD 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.
Getting Over It with Bennett Foddy
Every inch climbed is precise hammer micro-control
Spin Rhythm XD
Wheel-spinning, flicks, and taps demand analog precision
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Getting Over It with Bennett Foddy
The mountain never adapts
Spin Rhythm XD
Charts never adapt
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Getting Over It with Bennett Foddy
Fully deterministic physics and terrain
Spin Rhythm XD
Deterministic charts
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Getting Over It with Bennett Foddy
Route knowledge helps but cannot replace hands
Spin Rhythm XD
Chart study and controller technique choices
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.