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
Deep hex-battle build optimization with dice variance layered over every action.

Optimization · Pure Optimization
Gentler GBA Fire Emblem with branching promotions and an optional grinding tower softening the tactics test.
Blackguards 2 leans Optimization (Pure Optimization); Fire Emblem: The Sacred Stones 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.
Blackguards 2
Hex-grid turns carry no physical demand
Fire Emblem: The Sacred Stones
Grid menu tactics; nothing physical.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Blackguards 2
Enemy AI follows fixed tactical logic
Fire Emblem: The Sacred Stones
Enemies use fixed targeting logic.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Blackguards 2
Dark Eye dice rolls swing individual actions
Fire Emblem: The Sacred Stones
Hit, crit, and growth RNG remain meaningful.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Blackguards 2
Build planning and battlefield manipulation are the deep solvable core
Fire Emblem: The Sacred Stones
Branching promotions and grindable maps reward build 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.