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.

Optimization · Practiced Mastery
A sprawling open-world crime epic with RPG-style character stats across a whole state.

Execution · Practiced Mastery
Visceral hack-and-slash movie tie-in where Wolverine shreds everything in reach.
Grand Theft Auto: San Andreas leans Optimization (Practiced Mastery); X-Men Origins: Wolverine leans Execution (Practiced Mastery).
X-Men Origins: Wolverine leans a little harder on execution, though the gap is small.
Grand Theft Auto: San Andreas
Flying school and drive-bys need decent hands
X-Men Origins: Wolverine
Lunge timing and combo flow carry brawls.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Grand Theft Auto: San Andreas
Gang AI is scripted, never adaptive
X-Men Origins: Wolverine
Enemies attack on fixed scripts.
Grand Theft Auto: San Andreas leans a little harder on variance, though the gap is small.
Grand Theft Auto: San Andreas
Territory wars and traffic add light randomness
X-Men Origins: Wolverine
Almost none; encounters are staged.
Grand Theft Auto: San Andreas leans a little harder on optimization, though the gap is small.
Grand Theft Auto: San Andreas
Stats, gym, weapon skill, and routes reward systematic play
X-Men Origins: Wolverine
Mutagen builds and skill unlocks are simple to solve.
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.