head to head
Wii Play asks more than The Simpsons Wrestling, and the gap is execution.

Execution · Light / Casual
A shallow mashy wrestler where exploiting janky moves beats any deep skill.

Execution · Pure Mechanics
Nine pointer-driven minigames bundled with a Wii Remote, from duck-hunt shooting to table tennis.
The Simpsons Wrestling leans Execution (Light / Casual); Wii Play leans Execution (Pure Mechanics).
Wii Play leans clearly harder on execution.
The Simpsons Wrestling
Mashy controls with little precision to reward
Wii Play
Pointer aim and timing carry shooting and ping-pong games
The Simpsons Wrestling leans a little harder on reads, though the gap is small.
The Simpsons Wrestling
Versus humans involves light habit-reading
Wii Play
Two-player duels add slight mutual prediction
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
The Simpsons Wrestling
Janky collision adds accidental randomness
Wii Play
Find Mii crowds and target spawns randomise lightly
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
The Simpsons Wrestling
Each character's spam-able power move is quickly found
Wii Play
Minigames are too shallow to deeply optimise
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.