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.

Reads · Grand Arena
A reads-heavy neutral game where V-System decisions and opponent modelling decide bouts.
Mortal Kombat X leans Execution (Grand Arena); Street Fighter V leans Reads (Grand Arena).
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
Street Fighter V
V-Trigger combos and meaty setups require solid execution
Street Fighter V leans a little harder on reads, though the gap is small.
Mortal Kombat X
Reading opponent's variation choice and tendency shifts the matchup
Street Fighter V
V-System neutral game heavily rewards opponent habit exploitation
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
Street Fighter V
No RNG; match flow is entirely player-driven
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Mortal Kombat X
Variation selection and optimal punish routes require systematic study
Street Fighter V
Season-by-season tier lists and V-Skill routing reward study
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.