head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is reads, 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
Grapple-timing execution and mashing stamina in arcade wrestling matches.
Aliens vs. Predator leans Execution (Practiced Mastery); WWF Royal Rumble leans Execution (Pure Mechanics).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Aliens vs. Predator
aim and melee timing across species
WWF Royal Rumble
Grapple timing and button mashing decide every lock-up
WWF Royal Rumble leans a little harder on reads, though the gap is small.
Aliens vs. Predator
human opponents in multiplayer modes
WWF Royal Rumble
Human opponents add some habit prediction in versus
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
WWF Royal Rumble
Little is hidden beyond grapple outcome wobble
Aliens vs. Predator leans a little harder on optimization, though the gap is small.
Aliens vs. Predator
class abilities and routes solvable
WWF Royal Rumble
Move utility knowledge is a shallow solvable layer
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.