head to head
Neither is simply harder - they are hard in different places. Fire Emblem demands more variance; The Elder Scrolls V: Skyrim demands more execution.

Optimization · Pure Optimization
A tactical RPG where careful positioning and managing randomized combat odds decides survival.

Optimization · Pure Optimization
An open-world RPG mostly about discovering and stacking exploitable progression systems.
Fire Emblem leans Optimization (Pure Optimization); The Elder Scrolls V: Skyrim leans Optimization (Pure Optimization).
The Elder Scrolls V: Skyrim leans clearly harder on execution.
Fire Emblem
no real-time physical skill, turn-based
The Elder Scrolls V: Skyrim
Combat is forgiving; aim and timing rarely punish you.
Fire Emblem leans a little harder on reads, though the gap is small.
Fire Emblem
AI is scripted, no true adaptation
The Elder Scrolls V: Skyrim
Enemy AI is scripted and exploitable; not adaptive.
Fire Emblem leans clearly harder on variance.
Fire Emblem
hit chance rolls are heavily randomized
The Elder Scrolls V: Skyrim
Loot tables and leveled lists inject mild randomness.
Fire Emblem leans clearly harder on optimization.
Fire Emblem
permadeath tactics and builds near-solvable
The Elder Scrolls V: Skyrim
Skill stacking, enchant loops, and exploits are deeply 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.