head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is reads, and it is a single point.

Execution · Practiced Mastery
The stealth-brawler that defined rhythmic freeflow combat and predator rooms.

Execution · Practiced Mastery
Sandbox crime playground spanning shooting, driving, and a persistent online economy.
Batman: Arkham Asylum leans Execution (Practiced Mastery); Grand Theft Auto V leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Batman: Arkham Asylum
Freeflow combo timing rewards rhythm.
Grand Theft Auto V
Driving and shooting demand decent inputs.
Grand Theft Auto V leans a little harder on reads, though the gap is small.
Batman: Arkham Asylum
Thug AI scripted and mappable.
Grand Theft Auto V
Online PvP exists but mostly gear/positioning, not modeling.
Grand Theft Auto V leans a little harder on variance, though the gap is small.
Batman: Arkham Asylum
Encounters deterministic.
Grand Theft Auto V
Some mission and lobby randomness.
Batman: Arkham Asylum leans a little harder on optimization, though the gap is small.
Batman: Arkham Asylum
Predator room routes and gadgets solvable.
Grand Theft Auto V
Heists, money loops, builds 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.