head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

Optimization · Pure Optimization
A turn-based fantasy strategy game where economy and army optimization decide games.

Optimization · Pure Optimization
An original RPG system where engagement optimization and passive-stacking theory dominate hard-mode encounters.
Might & Magic Heroes VII leans Optimization (Pure Optimization); Pillars of Eternity leans Optimization (Pure Optimization).
Pillars of Eternity leans a little harder on execution, though the gap is small.
Might & Magic Heroes VII
no reflex demand, turn-based strategy
Pillars of Eternity
Real-time-with-pause removes all twitch pressure from the player
Might & Magic Heroes VII leans a little harder on reads, though the gap is small.
Might & Magic Heroes VII
human opponents can be out-maneuvered strategically
Pillars of Eternity
All AI opponents use fixed scripted behaviour trees
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Might & Magic Heroes VII
combat rolls and map resource randomness
Pillars of Eternity
Hidden enemy immunities and ability distributions require investigation
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Might & Magic Heroes VII
army building and economy optimization dominate
Pillars of Eternity
Per-encounter ability management and passive stacking define trial-of-iron mastery
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.