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

Optimization · Practiced Mastery
A real-time RPG carried by ascension-grid routing and magic crafting.

Execution · Practiced Mastery
Robot-dinosaur hunting that rewards weak-point study and ranged precision.
Final Fantasy XV leans Optimization (Practiced Mastery); Horizon Zero Dawn leans Execution (Practiced Mastery).
Horizon Zero Dawn leans a little harder on execution, though the gap is small.
Final Fantasy XV
Real-time combat, modest input demand
Horizon Zero Dawn
Bow aiming and dodge timing matter.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Final Fantasy XV
Scripted enemies
Horizon Zero Dawn
Machines follow fixed patterns, not adapting.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Final Fantasy XV
Loot and ascension variance
Horizon Zero Dawn
Some loot and patrol randomness.
Final Fantasy XV leans a little harder on optimization, though the gap is small.
Final Fantasy XV
Ascension grid, magic crafting, party planning
Horizon Zero Dawn
Weak points, traps, builds fully solvable.
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.