head to head
12 is Better Than 6 asks more than Grand Theft Auto: San Andreas, and the gap is execution.

Execution · Practiced Mastery
A hand-drawn western take on Hotline Miami where you cock the revolver before every single shot.

Optimization · Practiced Mastery
A sprawling open-world crime epic with RPG-style character stats across a whole state.
12 is Better Than 6 leans Execution (Practiced Mastery); Grand Theft Auto: San Andreas leans Optimization (Practiced Mastery).
12 is Better Than 6 leans clearly harder on execution.
12 is Better Than 6
One-hit deaths, manual cocking, fast top-down aim
Grand Theft Auto: San Andreas
Flying school and drive-bys need decent hands
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
12 is Better Than 6
Enemies are placed and scripted
Grand Theft Auto: San Andreas
Gang AI is scripted, never adaptive
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
12 is Better Than 6
Unknown enemy placements on first attempts only
Grand Theft Auto: San Andreas
Territory wars and traffic add light randomness
Grand Theft Auto: San Andreas leans a little harder on optimization, though the gap is small.
12 is Better Than 6
Each room becomes a learnable clear order
Grand Theft Auto: San Andreas
Stats, gym, weapon skill, and routes reward systematic play
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.