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 auto-battling deckbuilder about building a loop to defeat the Lich.

Optimization · Pure Optimization
Handheld SMT where smirk RNG stings but fusion planning and weakness knowledge carry you.
Loop Hero leans Optimization (Pure Optimization); Shin Megami Tensei IV 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.
Loop Hero
Autobattler, almost no inputs.
Shin Megami Tensei IV
Menu combat with no execution ceiling.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Loop Hero
Enemies follow scripts.
Shin Megami Tensei IV
Demon negotiation is random personality scripts.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Loop Hero
Card draws and loot drops randomize.
Shin Megami Tensei IV
Smirk procs and negotiation RNG swing fights hard.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Loop Hero
Deck and tile placement reward deep optimization.
Shin Megami Tensei IV
Fusion apps, weakness charts, and builds solve the game.
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.