head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is variance, and it is a single point.

Execution · Competitive PvP
A Crash Bandicoot party collection of competitive arena minigames for up to four players.

Execution · Competitive PvP
A soccer game testing passing timing and anticipation against opposing players.
Crash Bash leans Execution (Competitive PvP); Ultimate Soccer leans Execution (Competitive PvP).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Crash Bash
Minigame timing, mashing, and dodging decide most rounds
Ultimate Soccer
Passing and shot timing demand moderate control
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Crash Bash
Human rivals in versus minigames can be baited
Ultimate Soccer
Versus humans, anticipating passes and runs matters
Crash Bash leans a little harder on variance, though the gap is small.
Crash Bash
Item drops and arena randomness swing rounds
Ultimate Soccer
Deflections and keeper saves add chance
Ultimate Soccer leans a little harder on optimization, though the gap is small.
Crash Bash
Light minigame strategies, quickly learned
Ultimate Soccer
Formation and passing-strategy choices carry light planning
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.