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
A cult-classic vampire RPG won by discipline choice and skill-check routing.
Final Fantasy XIII leans Optimization (Pure Optimization); Vampire: The Masquerade - Bloodlines leans Optimization (Pure Optimization).
Vampire: The Masquerade - Bloodlines leans a little harder on execution, though the gap is small.
Final Fantasy XIII
Paradigm shifts need timely menu reactions
Vampire: The Masquerade - Bloodlines
Janky hybrid combat, low demand
Vampire: The Masquerade - Bloodlines leans a little harder on reads, though the gap is small.
Final Fantasy XIII
Scripted stagger-phase bosses
Vampire: The Masquerade - Bloodlines
Scripted NPCs
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Final Fantasy XIII
Minor randomness in enemy actions
Vampire: The Masquerade - Bloodlines
Hidden dice under skill checks
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
Vampire: The Masquerade - Bloodlines
Discipline, feeding, build routing central
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.