head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is variance, and it is a single point.

Execution · Practiced Mastery
Zelda-meets-God-of-War action adventure starring the horseman War.

Optimization · Practiced Mastery
Build optimization and learned monster weak points, executed through physical climb-and-strike combat.
Darksiders leans Execution (Practiced Mastery); Dragon's Dogma: Dark Arisen leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Darksiders
combo-driven combat with dodge timing
Dragon's Dogma: Dark Arisen
Climbing monsters and timing skills demands real combat dexterity
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Darksiders
enemies are scripted
Dragon's Dogma: Dark Arisen
Pawns and monsters follow learnable scripted behaviours
Dragon's Dogma: Dark Arisen leans a little harder on variance, though the gap is small.
Darksiders
world and bosses are fixed
Dragon's Dogma: Dark Arisen
Bitterblack loot rolls and night spawns add managed randomness
Dragon's Dogma: Dark Arisen leans a little harder on optimization, though the gap is small.
Darksiders
Zelda-style dungeons and upgrade routing
Dragon's Dogma: Dark Arisen
Vocation builds, augment stacking and monster weak-point knowledge dominate
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.