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 pure execution test of translating physical skating intuition into analog stick inputs.

Execution · Pure Mechanics
Tests perceptual speed and motor execution under accelerating piece gravity.
Skate 3 leans Execution (Pure Mechanics); Tetris DX 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.
Skate 3
Analog stick flicks for trick inputs demand fine motor precision
Tetris DX
Precise placement under accelerating gravity decides every game
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Skate 3
No adaptive opponent; competitive modes are score chases
Tetris DX
Solo stacking with no opponent to model
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Skate 3
Physics jank can produce unexpected results on complex terrain
Tetris DX
Random pieces are bounded and rapidly mappable
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Skate 3
Trick selection and line routing benefit from planning but aren't deep systems
Tetris DX
Stacking patterns and scoring strategy are well solved
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.