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

Execution · Competitive PvP
An anime fighter testing combo execution and counter-baiting against human opponents.

Execution · Competitive PvP
A wrestling fighter testing move timing and reading human opponents.
Dragon Ball Z: Budokai 3 leans Execution (Competitive PvP); WWF Raw 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.
Dragon Ball Z: Budokai 3
Combo execution, teleport counters and beam timing demand hands
WWF Raw
Timing grapples, reversals and moves drives matches
Dragon Ball Z: Budokai 3 leans a little harder on reads, though the gap is small.
Dragon Ball Z: Budokai 3
Versus humans, baiting teleports and guessing cancels decides exchanges
WWF Raw
Human opponents bait and counter in real time
WWF Raw leans a little harder on variance, though the gap is small.
Dragon Ball Z: Budokai 3
Almost nothing random beyond minor clash inputs
WWF Raw
Move outcomes mostly deterministic
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Dragon Ball Z: Budokai 3
Capsule builds and matchup knowledge underpin competitive play
WWF Raw
Move sets and matchup knowledge are learnable
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.