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 · Practiced Mastery
Careful climbing execution and route planning where a single mistimed grab undoes everything.

Execution · Pure Mechanics
A portable Tetris entry with varied modes atop the classic falling-block formula.
Peak leans Execution (Practiced Mastery); Tetris: Axis leans Execution (Pure Mechanics).
Tetris: Axis leans a little harder on execution, though the gap is small.
Peak
Stamina-managed grip timing - one slipped input drops the whole climb
Tetris: Axis
fast precise piece placement and rotation
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Peak
Co-op against a mountain, no adaptive opponent
Tetris: Axis
no opponent modeling in main mode
Tetris: Axis leans a little harder on variance, though the gap is small.
Peak
Daily map rotation and item spawns shuffle each ascent
Tetris: Axis
random piece sequence drives play
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Peak
Routing the wall and rationing items decides summit attempts
Tetris: Axis
stacking strategy and clear efficiency
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.