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
An arcade beat 'em up testing crowd-control reflexes and memorised spawn patterns.

Execution · Pure Mechanics
The 70s-cinema getaway driving game with famously demanding physics.
Alien Storm leans Execution (Pure Mechanics); Driver 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.
Alien Storm
Arcade crowd control and dodge timing decide credits spent
Driver
Handbrake control and pursuit driving by feel
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Alien Storm
Alien waves follow fixed arcade scripts
Driver
Police AI is mappable
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Alien Storm
Enemy ambush spots are memorisable after one run
Driver
Traffic adds mild unpredictability
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Alien Storm
Energy management and learned spawn patterns reward repetition
Driver
City routes and mission tactics 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.