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
A tense sci-fi shooter where asymmetric species combat rewards aim and positioning.

Execution · Pure Mechanics
A late-90s mercenary FPS infamous for its graphic locational damage system.
Aliens vs. Predator leans Execution (Practiced Mastery); Soldier of Fortune leans Execution (Pure Mechanics).
Soldier of Fortune leans a little harder on execution, though the gap is small.
Aliens vs. Predator
aim and melee timing across species
Soldier of Fortune
Fast twitch aim against fragile enemies decides everything
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Aliens vs. Predator
human opponents in multiplayer modes
Soldier of Fortune
Multiplayer duels add a little human prediction
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Aliens vs. Predator
enemy spawns and drops vary
Soldier of Fortune
Campaign layouts and spawns are fixed
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Aliens vs. Predator
class abilities and routes solvable
Soldier of Fortune
Weapon choice and level routes are quickly learned
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.