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
Arcade western shooter narrated as a bounty hunter's tall tale.

Execution · Practiced Mastery
A medieval-flavored Doom prequel built around shield parries and heavy combat.
Call of Juarez: Gunslinger leans Execution (Practiced Mastery); Doom: The Dark Ages 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.
Call of Juarez: Gunslinger
Quick-draw duels and combo shooting demand precision
Doom: The Dark Ages
Parry timing and shield play demand precise inputs
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Call of Juarez: Gunslinger
Enemies are scripted gallery targets
Doom: The Dark Ages
Demon attack patterns are fixed and learnable
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Call of Juarez: Gunslinger
Minor enemy placement surprises first run
Doom: The Dark Ages
Encounters fully scripted
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Call of Juarez: Gunslinger
Score routes, skill trees, duel timing knowledge
Doom: The Dark Ages
Upgrade paths and combat-loop mastery solve fights
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.