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 · Practiced Mastery
A simple licensed brawler testing little beyond button mashing and upgrades.

Optimization · Practiced Mastery
A gag-driven platformer testing little beyond collectible patience.
Dragon Ball Z: Sagas leans Execution (Practiced Mastery); The Simpsons Game leans Optimization (Practiced Mastery).
Dragon Ball Z: Sagas leans a little harder on execution, though the gap is small.
Dragon Ball Z: Sagas
Simple brawling needs only basic timing
The Simpsons Game
Simple platforming and character-power timing
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Dragon Ball Z: Sagas
Enemies and bosses are scripted
The Simpsons Game
Parody enemies are jokes on rails
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Dragon Ball Z: Sagas
Linear levels with fixed encounters
The Simpsons Game
Levels are fixed gag sequences
The Simpsons Game leans a little harder on optimization, though the gap is small.
Dragon Ball Z: Sagas
Z-coin upgrades add a thin progression layer
The Simpsons Game
Character-ability puzzles and collectibles are lightly solvable
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.