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.

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

Optimization · Practiced Mastery
BioWare's wuxia RPG mixing martial-arts combat with moral-path storytelling.
Final Fantasy XV leans Optimization (Practiced Mastery); Jade Empire leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Final Fantasy XV
Real-time combat, modest input demand
Jade Empire
Real-time martial combat with dodge timing
Final Fantasy XV leans a little harder on reads, though the gap is small.
Final Fantasy XV
Scripted enemies
Jade Empire
Foes use fixed styles
Final Fantasy XV leans a little harder on variance, though the gap is small.
Final Fantasy XV
Loot and ascension variance
Jade Empire
Authored RPG with set encounters
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
Jade Empire
Style counters, stat builds, and dialogue paths
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.