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 · Pure Optimization
Dungeon-crawling PS1 sequel built around DNA digivolution and grinding through randomized domains.

Optimization · Pure Optimization
Handheld tactics RPG adding a shifting law system to grid battles.
Digimon World 2 leans Optimization (Pure Optimization); Final Fantasy Tactics Advance leans Optimization (Pure Optimization).
Final Fantasy Tactics Advance leans a little harder on execution, though the gap is small.
Digimon World 2
Turn-based dungeon crawling; no dexterity
Final Fantasy Tactics Advance
Turn-based grid commands only
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Digimon World 2
Fixed AI encounters only
Final Fantasy Tactics Advance
Scripted opponents, judge rules are fixed
Digimon World 2 leans a little harder on variance, though the gap is small.
Digimon World 2
Random dungeon layouts and recruitment rolls
Final Fantasy Tactics Advance
Random laws and hit rolls
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Digimon World 2
DNA digivolving and party math are the whole game
Final Fantasy Tactics Advance
Race-job ability combos reward deep planning
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.