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
Roman city builder about zoning, supply chains and keeping plebs and patricians content.

Optimization · Pure Optimization
JRPG where you program party AI through its gambit system.
Caesar IV leans Optimization (Pure Optimization); Final Fantasy XII 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.
Caesar IV
Pause-friendly mouse management; no dexterity ceiling.
Final Fantasy XII
Gambits automate combat away from the hands
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Caesar IV
Invasions and gods are scripted, never adaptive.
Final Fantasy XII
Enemy AI is fixed and exploitable
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Caesar IV
Fires, plagues and barbarian timing add mild unknowns.
Final Fantasy XII
Rare spawns and drop RNG
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Caesar IV
Housing blocks, walker logistics and supply chains are solvable.
Final Fantasy XII
Programming gambit logic IS the gameplay
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.