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
Small-town murder-mystery JRPG balancing friendships by day and TV-world dungeons by night.

Optimization · Pure Optimization
The original Gold Box tactical RPG, won through D&D system mastery against the dice.
Persona 4 leans Optimization (Pure Optimization); Pool of Radiance 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.
Persona 4
Menu combat; zero dexterity
Pool of Radiance
Turn-based tactical grid; no twitch.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Persona 4
Shadow bosses use scripted patterns
Pool of Radiance
Monster AI is simple fixed logic.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Persona 4
Randomized dungeon floors and fusion rolls
Pool of Radiance
D&D dice on every attack, save, and encounter.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Persona 4
Social link scheduling and weakness-exploit planning
Pool of Radiance
Positioning, spell memorization, and party builds win battles.
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.