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
Drift execution and learned racing lines through destructible city tracks.

Execution · Pure Mechanics
Island-themed collection of twelve motion-controlled sports showcasing the Wii MotionPlus accessory.
Ridge Racer Unbounded leans Execution (Pure Mechanics); Wii Sports Resort leans Execution (Pure Mechanics).
Ridge Racer Unbounded leans a little harder on execution, though the gap is small.
Ridge Racer Unbounded
Drift control and boost timing decide every race
Wii Sports Resort
MotionPlus precision in swordplay, archery and bowling
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Ridge Racer Unbounded
Online rivals allow mild positional prediction
Wii Sports Resort
Local versus duels involve mild feinting
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Ridge Racer Unbounded
Destruction chaos adds modest track noise
Wii Sports Resort
Slight physics and CPU pattern randomness
Ridge Racer Unbounded leans a little harder on optimization, though the gap is small.
Ridge Racer Unbounded
Learning racing lines and shortcut routes rewards study
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.