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
Linear JRPG built around real-time paradigm switching and stagger combat.

Optimization · Pure Optimization
An anthology JRPG where each scenario demands distinct positioning and build optimization against scripted enemy patterns.
Final Fantasy XIII leans Optimization (Pure Optimization); Live A Live leans Optimization (Pure Optimization).
Live A Live leans a little harder on execution, though the gap is small.
Final Fantasy XIII
Paradigm shifts need timely menu reactions
Live A Live
Grid-based combat has mild positioning timing elements
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Final Fantasy XIII
Scripted stagger-phase bosses
Live A Live
All eight scenario enemies are scripted
Live A Live leans a little harder on variance, though the gap is small.
Final Fantasy XIII
Minor randomness in enemy actions
Live A Live
Ambush and battle position randomness affect some chapter outcomes
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Final Fantasy XIII
Paradigm sequencing and stagger timing are solvable
Live A Live
Chapter-specific unit builds and grid positioning form the solvable 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.