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 chaotic vehicular-combat racer where destructive driving skill leads.

Execution · Pure Mechanics
Island-themed collection of twelve motion-controlled sports showcasing the Wii MotionPlus accessory.
Carmageddon TDR 2000 leans Execution (Practiced Mastery); 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.
Carmageddon TDR 2000
vehicular combat driving and crash control
Wii Sports Resort
MotionPlus precision in swordplay, archery and bowling
Wii Sports Resort leans a little harder on reads, though the gap is small.
Carmageddon TDR 2000
AI drivers barely adapt to player
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.
Carmageddon TDR 2000
crash physics and pedestrian randomness
Wii Sports Resort
Slight physics and CPU pattern randomness
Carmageddon TDR 2000 leans a little harder on optimization, though the gap is small.
Carmageddon TDR 2000
vehicle upgrade and route optimization
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.