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
A puzzle-RPG hybrid where Djinn combination theory and Psynergy routing trivializes its scripted encounters.

Optimization · Pure Optimization
One of the deepest classic JRPGs, where party optimization and precise recruitment routing unlock its full richness.
Golden Sun leans Optimization (Pure Optimization); Suikoden II 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.
Golden Sun
Fully turn-based Djinn-based combat; no timing demands
Suikoden II
Menu combat; duel minigame has mild timing
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Golden Sun
All bosses are scripted pattern fighters
Suikoden II
All enemies scripted; no player-modeling AI
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Golden Sun
Djinn status randomness and summon charge timing add minor variance
Suikoden II
Rune drop RNG and recruitment trigger timing add light variance
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Golden Sun
Djinn set theory, Psynergy routing, and summon sequencing are deeply solvable
Suikoden II
Party comp, rune combos, and duel answer memorization are solvable
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.