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 · Pure Optimization
A pausable tactics RPG where party build and tactic-slot planning win fights.

Optimization · Pure Optimization
The poppy direct sequel to FFX where Yuna's trio swaps job dresspheres mid-battle across Spira.
Dragon Age: Origins leans Optimization (Pure Optimization); Final Fantasy X-2 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.
Dragon Age: Origins
Tactical pause combat, low input demand
Final Fantasy X-2
Active Time Battle rewards quick menuing slightly.
Dragon Age: Origins leans a little harder on reads, though the gap is small.
Dragon Age: Origins
Enemy AI is scripted
Final Fantasy X-2
All enemies follow scripted AI routines.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Dragon Age: Origins
Hidden rolls and loot tables
Final Fantasy X-2
Drop rates and unknown encounters until mapped.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Dragon Age: Origins
Tactics slots, builds, party synergy dominate
Final Fantasy X-2
Dressphere builds, garment grids, and completion routing dominate.
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.