head to head
Neither is simply harder - they are hard in different places. 19XX: The War Against Destiny demands more execution; Grand Theft Auto V demands more reads.

Execution · Practiced Mastery
Capcom's polished CPS2 vertical shooter built around a charging lock-on bomb and tight scoring play.

Execution · Practiced Mastery
Sandbox crime playground spanning shooting, driving, and a persistent online economy.
19XX: The War Against Destiny leans Execution (Practiced Mastery); Grand Theft Auto V leans Execution (Practiced Mastery).
19XX: The War Against Destiny leans clearly harder on execution.
19XX: The War Against Destiny
Capcom bullet density plus lock-on bomb timing
Grand Theft Auto V
Driving and shooting demand decent inputs.
Grand Theft Auto V leans clearly harder on reads.
19XX: The War Against Destiny
Boss patterns are fixed
Grand Theft Auto V
Online PvP exists but mostly gear/positioning, not modeling.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
19XX: The War Against Destiny
Little hidden once stages are studied
Grand Theft Auto V
Some mission and lobby randomness.
19XX: The War Against Destiny leans clearly harder on optimization.
19XX: The War Against Destiny
Charge-shot usage and scoring routes reward deep study
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.