head to head
Neither is simply harder - they are hard in different places. Grand Theft Auto: San Andreas demands more optimization; NHL Hockey demands more reads.

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

Execution · Practiced Mastery
Foundational ice hockey sim testing stick timing and exploiting goalie angles.
Grand Theft Auto: San Andreas leans Optimization (Practiced Mastery); NHL Hockey leans Execution (Practiced Mastery).
NHL Hockey leans clearly harder on execution.
Grand Theft Auto: San Andreas
Flying school and drive-bys need decent hands
NHL Hockey
Skating angles, pass timing and shot placement decide goals
NHL Hockey leans clearly harder on reads.
Grand Theft Auto: San Andreas
Gang AI is scripted, never adaptive
NHL Hockey
Against a human, baiting checks and goalie reads matter
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Grand Theft Auto: San Andreas
Territory wars and traffic add light randomness
NHL Hockey
Puck bounces add light physical randomness
Grand Theft Auto: San Andreas leans clearly harder on optimization.
Grand Theft Auto: San Andreas
Stats, gym, weapon skill, and routes reward systematic play
NHL Hockey
Exploitable AI angles and line strategy are mappable
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.