head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Execution · Practiced Mastery
Open-world superhero game whose joy is fluid web-swinging and rhythmic combat.

Execution · Practiced Mastery
An accessible open-world heist fantasy with forgiving stealth and shooting.
Marvel's Spider-Man leans Execution (Practiced Mastery); Star Wars Outlaws leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Marvel's Spider-Man
swinging flow and combat dodge timing
Star Wars Outlaws
Blaster combat and stealth need only moderate precision
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Marvel's Spider-Man
thugs and bosses follow fixed patterns
Star Wars Outlaws
Guards and syndicates run scripted detection routines
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Marvel's Spider-Man
open world is fully discoverable
Star Wars Outlaws
Open-world content is fixed once discovered
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Marvel's Spider-Man
gadget loadouts and suit mods are shallow but present
Star Wars Outlaws
Reputation juggling and gear upgrades are a light systems layer
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.