head to head
vs
Grand Theft Auto: San AndreasvsRed Dead Redemption: Undead Nightmare
Grand Theft Auto: San Andreas leans Optimization (Practiced Mastery); Red Dead Redemption: Undead Nightmare leans Execution (Practiced Mastery).
Grand Theft Auto: San AndreasRed Dead Redemption: Undead Nightmare
Axis by axis
Execution4 vs 5
Red Dead Redemption: Undead Nightmare leans harder on execution: Headshot aim against shambling hordes with scarce ammo
Reads0 vs 0
Even - both lean on reads about the same.
Variance2 vs 2
Even - both lean on variance about the same.
Optimization6 vs 5
Grand Theft Auto: San Andreas leans harder on optimization: Stats, gym, weapon skill, and routes reward systematic play
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.