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 classic side-scrolling platformer following Aladdin through Agrabah and beyond.

Execution · Pure Mechanics
A rhythm racer that turns any music file into a reflex puzzle track.
Aladdin leans Execution (Pure Mechanics); Audiosurf 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.
Aladdin
Precise platforming jumps and sword-timing are demanding.
Audiosurf
Lane-switching to the beat tests reaction speed.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Aladdin
No adaptive opponent, fixed enemy patterns.
Audiosurf
No opponent.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Aladdin
Some randomness in enemy placement and drops.
Audiosurf
Track generated from song, then fixed.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Aladdin
Level routes are learnable but execution dominates.
Audiosurf
Block-matching color strategy learnable per song.
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.