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 hero battle royale where teamwork and aim against human opponents decides fights.

Execution · Practiced Mastery
A basketball sim testing shot timing and tactical play against opponents.
My Hero Ultra Rumble leans Execution (Competitive PvP); NBA 2K3 leans Execution (Practiced Mastery).
My Hero Ultra Rumble leans a little harder on execution, though the gap is small.
My Hero Ultra Rumble
aim and combo timing in battles
NBA 2K3
Shooting and dribble timing decide plays
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
My Hero Ultra Rumble
predicting human opponent tactics
NBA 2K3
Human opponents reward reading offense and defense
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
My Hero Ultra Rumble
item and loot drops are random
NBA 2K3
Shot success carries randomness
NBA 2K3 leans a little harder on optimization, though the gap is small.
My Hero Ultra Rumble
team comps and loadouts solvable
NBA 2K3
Playcalling, rotations, and team management reward 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.