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.

Optimization · Pure Optimization
Card-economy management and fixed puzzle solutions with light timing inputs.
Final Fantasy XV leans Optimization (Practiced Mastery); Paper Mario: Color Splash leans Optimization (Pure Optimization).
Final Fantasy XV leans a little harder on execution, though the gap is small.
Final Fantasy XV
Real-time combat, modest input demand
Paper Mario: Color Splash
Timed action commands add a light input layer
Final Fantasy XV leans a little harder on reads, though the gap is small.
Final Fantasy XV
Scripted enemies
Paper Mario: Color Splash
Enemies behave on fixed scripts
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
Paper Mario: Color Splash
Required Thing cards are unknown until discovered
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Final Fantasy XV
Ascension grid, magic crafting, party planning
Paper Mario: Color Splash
Card economy, paint management and puzzle solutions are the core
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.