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

Execution · Practiced Mastery
Landmark scripted FPS following Gordon Freeman through the Black Mesa disaster.

Execution · Practiced Mastery
A Star Wars action shooter famed for its skill-heavy lightsaber combat.
Half-Life leans Execution (Practiced Mastery); Star Wars Jedi Knight II: Jedi Outcast leans Execution (Practiced Mastery).
Star Wars Jedi Knight II: Jedi Outcast leans a little harder on execution, though the gap is small.
Half-Life
Combat aim and infamous platforming sections
Star Wars Jedi Knight II: Jedi Outcast
Saber stances and timing carry every duel
Star Wars Jedi Knight II: Jedi Outcast leans a little harder on reads, though the gap is small.
Half-Life
Marines flank by script, not by modelling you
Star Wars Jedi Knight II: Jedi Outcast
Bosses are pattern-based; only MP duels involve humans
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Half-Life
Set pieces surprise only on first run
Star Wars Jedi Knight II: Jedi Outcast
Enemy placements fixed after first encounter
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Half-Life
Resource routing and encounter knowledge for speedruns
Star Wars Jedi Knight II: Jedi Outcast
Force builds and saber-system mastery are 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.