head to head
Fallout: New Vegas asks more than Final Fantasy Tactics Advance, and the gap is execution.

Optimization · Pure Optimization
A faction-driven RPG-shooter where build and route planning shape every ending.

Optimization · Pure Optimization
Handheld tactics RPG adding a shifting law system to grid battles.
Fallout: New Vegas leans Optimization (Pure Optimization); Final Fantasy Tactics Advance leans Optimization (Pure Optimization).
Fallout: New Vegas leans clearly harder on execution.
Fallout: New Vegas
Shooter inputs with VATS assist
Final Fantasy Tactics Advance
Turn-based grid commands only
Fallout: New Vegas leans a little harder on reads, though the gap is small.
Fallout: New Vegas
Scripted factions and enemies
Final Fantasy Tactics Advance
Scripted opponents, judge rules are fixed
Final Fantasy Tactics Advance leans a little harder on variance, though the gap is small.
Fallout: New Vegas
Some loot and crit RNG
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.
Fallout: New Vegas
Faction routing, perks, builds heavily rewarded
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.