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 · Pure Mechanics
An asymmetric horror FPS letting you play marine, alien, or predator, each with wholly different abilities.

Execution · Twitch Chaos
N64 couch classic where blue shells and shortcuts decide friendships.
Aliens versus Predator (1999) leans Execution (Pure Mechanics); Mario Kart 64 leans Execution (Twitch Chaos).
Aliens versus Predator (1999) leans a little harder on execution, though the gap is small.
Aliens versus Predator (1999)
Fast aliens and panicked aim demand twitch reflexes
Mario Kart 64
Mini-turbo snaking and shortcut execution
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Aliens versus Predator (1999)
Asymmetric multiplayer pits unlike species against each other
Mario Kart 64
Couch rivals bait shells and fakes
Mario Kart 64 leans a little harder on variance, though the gap is small.
Aliens versus Predator (1999)
Motion-tracker dread and dark vents hide enemy positions
Mario Kart 64
Item draws swing every race
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Aliens versus Predator (1999)
Mastering each species' tools and level knowledge
Mario Kart 64
Shortcut and line knowledge is fully mapped
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.