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
Souls-flavored action-adventure where Fury whips through the Seven Deadly Sins on a ruined Earth.

Execution · Practiced Mastery
The series' action peak, with flashy drive forms and superbosses that built a lasting challenge-run community.
Darksiders III leans Execution (Practiced Mastery); Kingdom Hearts II 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.
Darksiders III
Souls-style dodge timing with punishing windows carries fights
Kingdom Hearts II
Revenge values and Data fights demand precise play
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Darksiders III
Sin bosses are pattern sets, not adaptive minds
Kingdom Hearts II
Even superbosses run scripted, mappable patterns
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Darksiders III
Hidden upgrades matter once; world is fixed
Kingdom Hearts II
Fully visible action systems
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Darksiders III
Hollow swapping, upgrade routing, and moveset study pay off
Kingdom Hearts II
Forms, abilities, and boss study reward labbing
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.