head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Optimization · Pure Optimization
Handheld tactics RPG adding a shifting law system to grid battles.

Optimization · Pure Optimization
Cozy castle-builder with optimization-friendly layouts.
Final Fantasy Tactics Advance leans Optimization (Pure Optimization); Kingdoms and Castles 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.
Final Fantasy Tactics Advance
Turn-based grid commands only
Kingdoms and Castles
no reflex
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Final Fantasy Tactics Advance
Scripted opponents, judge rules are fixed
Kingdoms and Castles
scripted viking raids
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Final Fantasy Tactics Advance
Random laws and hit rolls
Kingdoms and Castles
raid and disaster timing
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Final Fantasy Tactics Advance
Race-job ability combos reward deep planning
Kingdoms and Castles
layouts, taxes, defenses
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.