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

Optimization · Pure Optimization
Space 4X where out-planning the galaxy's economy wins wars before they start.

Optimization · Pure Optimization
Beloved fantasy turn-based strategy of heroes, castles, and stacked creature armies racing for map control.
Galactic Civilizations II: Dread Lords leans Optimization (Pure Optimization); Heroes of Might and Magic II 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.
Galactic Civilizations II: Dread Lords
Turn-based; zero dexterity
Heroes of Might and Magic II
Turn-based clicking only
Heroes of Might and Magic II leans a little harder on reads, though the gap is small.
Galactic Civilizations II: Dread Lords
Acclaimed AI still follows mappable doctrines
Heroes of Might and Magic II
Hotseat duels reward mind games; AI is mappable
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Galactic Civilizations II: Dread Lords
Galaxy generation and unexplored starts
Heroes of Might and Magic II
Map exploration, morale, luck, and combat rolls
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Galactic Civilizations II: Dread Lords
Economy sliders, ship design, and expansion math dominate
Heroes of Might and Magic II
Build orders, hero chaining, and creature math 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.