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 · Pure Mechanics
Landmark FPS built on physics puzzles and tight gunplay.

Execution · Pure Mechanics
Island-themed collection of twelve motion-controlled sports showcasing the Wii MotionPlus accessory.
Half-Life 2 leans Execution (Pure Mechanics); Wii Sports Resort 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.
Half-Life 2
Gravity gun and shooting demand precision.
Wii Sports Resort
MotionPlus precision in swordplay, archery and bowling
Wii Sports Resort leans a little harder on reads, though the gap is small.
Half-Life 2
Combine AI scripted, non-adaptive.
Wii Sports Resort
Local versus duels involve mild feinting
Wii Sports Resort leans a little harder on variance, though the gap is small.
Half-Life 2
Almost no randomness.
Wii Sports Resort
Slight physics and CPU pattern randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Half-Life 2
Linear progression with no builds.
Wii Sports Resort
Each event has small learnable technique optima
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.