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
An infamously cryptic NES adventure where lying villagers obscure how to break Dracula's curse.

Optimization · Pure Optimization
PS2 RPG pairing randomized dungeon crawls with rebuilding ruined towns.
Castlevania II: Simon's Quest leans Optimization (Pure Optimization); Dark Cloud 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.
Castlevania II: Simon's Quest
Modest whip combat; day-night enemies.
Dark Cloud
real-time dungeon combat with weapon timing
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Castlevania II: Simon's Quest
No adaptive opposition.
Dark Cloud
no adaptive opponent
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Castlevania II: Simon's Quest
Deliberately false villager clues hide the real path.
Dark Cloud
randomized dungeon floors and drops
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Castlevania II: Simon's Quest
Once decoded, it is pure item-and-route knowledge.
Dark Cloud
weapon evolution and town-building reward 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.