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 · Grand Arena
A variation-based fighter where character specialisation choices and read-and-punish execution drive competitive outcomes.

Execution · Competitive PvP
Arc System Works' Persona spinoff fighter where summoned Personas double every character's offense.
Mortal Kombat X leans Execution (Grand Arena); Persona 4 Arena Ultimax leans Execution (Competitive PvP).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Mortal Kombat X
Variation-specific combo routes demand precise practice
Persona 4 Arena Ultimax
Persona combos, one-more cancels, and tight confirms need real hands.
Mortal Kombat X leans a little harder on reads, though the gap is small.
Mortal Kombat X
Reading opponent's variation choice and tendency shifts the matchup
Persona 4 Arena Ultimax
Awakening threats and persona-break baits stay human guessing.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Mortal Kombat X
No RNG; transparent match flow
Persona 4 Arena Ultimax
Deterministic; status effects are earned, not random.
Mortal Kombat X leans a little harder on optimization, though the gap is small.
Mortal Kombat X
Variation selection and optimal punish routes require systematic study
Persona 4 Arena Ultimax
Persona card management and burst routing are labbable.
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.