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

Optimization · Pure Optimization
The poppy direct sequel to FFX where Yuna's trio swaps job dresspheres mid-battle across Spira.

Optimization · Pure Optimization
Classic open-world RPG where stats and broken crafting systems trump twitch skill.
Final Fantasy X-2 leans Optimization (Pure Optimization); The Elder Scrolls III: Morrowind leans Optimization (Pure Optimization).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Final Fantasy X-2
Active Time Battle rewards quick menuing slightly.
The Elder Scrolls III: Morrowind
Dice-roll combat ignores aim skill
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Final Fantasy X-2
All enemies follow scripted AI routines.
The Elder Scrolls III: Morrowind
No adaptive opposition
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Final Fantasy X-2
Drop rates and unknown encounters until mapped.
The Elder Scrolls III: Morrowind
Hit chances rolled behind the screen
Final Fantasy X-2 leans a little harder on optimization, though the gap is small.
Final Fantasy X-2
Dressphere builds, garment grids, and completion routing dominate.
The Elder Scrolls III: Morrowind
Alchemy and spellcrafting are famously 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.