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 crossover anime arena fighter pitting Shonen Jump heroes against each other.

Execution · Competitive PvP
Timing-based boxing with training preparation and opponent-specific weaknesses.
Jump Force leans Execution (Competitive PvP); Rocky leans Execution (Competitive PvP).
Rocky leans a little harder on execution, though the gap is small.
Jump Force
3D arena combos with generous tracking
Rocky
Punch timing, blocking, and stamina control lead the test
Jump Force leans a little harder on reads, though the gap is small.
Jump Force
Human opponents force guard-break guessing
Rocky
Versus boxing rewards baiting and predicting a human opponent
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Jump Force
Full information arena duels
Rocky
Fights are mostly deterministic given inputs
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Jump Force
Team picks and awakening meter management
Rocky
Training stat allocation and opponent weaknesses reward prep
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.