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 · Competitive PvP
A shallow novelty wrestler testing little beyond basic timing and weapon grabs.

Execution · Pure Mechanics
Island-themed collection of twelve motion-controlled sports showcasing the Wii MotionPlus accessory.
Celebrity Deathmatch leans Execution (Competitive PvP); Wii Sports Resort leans Execution (Pure Mechanics).
Wii Sports Resort leans a little harder on execution, though the gap is small.
Celebrity Deathmatch
Button timing wins matches but the ceiling is low
Wii Sports Resort
MotionPlus precision in swordplay, archery and bowling
Celebrity Deathmatch leans a little harder on reads, though the gap is small.
Celebrity Deathmatch
A couch opponent can be conditioned, shallowly
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.
Celebrity Deathmatch
Random weapon drops shake up the ring
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.
Celebrity Deathmatch
Learning each celebrity's finisher exhausts the depth fast
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.