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.

Optimization · Practiced Mastery
A first-person haunted-house survival game solved by crafting optimisation and scripted-enemy routing.
Grand Theft Auto: San Andreas leans Optimization (Practiced Mastery); Resident Evil 7: Biohazard leans Optimization (Practiced Mastery).
Resident Evil 7: Biohazard leans a little harder on execution, though the gap is small.
Grand Theft Auto: San Andreas
Flying school and drive-bys need decent hands
Resident Evil 7: Biohazard
First-person aiming and blocking under Molded pressure matters
Resident Evil 7: Biohazard leans a little harder on reads, though the gap is small.
Grand Theft Auto: San Andreas
Gang AI is scripted, never adaptive
Resident Evil 7: Biohazard
Family AI follows scripted stalker scripts, never adapts to you
Resident Evil 7: Biohazard leans a little harder on variance, though the gap is small.
Grand Theft Auto: San Andreas
Territory wars and traffic add light randomness
Resident Evil 7: Biohazard
Limited item locations are unknown on first visits
Resident Evil 7: Biohazard 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
Resident Evil 7: Biohazard
Resource crafting, tape management and route sequencing are fully 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.