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

Optimization · Pure Optimization
Beloved fantasy turn-based strategy of heroes, castles, and stacked creature armies racing for map control.

Optimization · Pure Optimization
The expanded Alola adventure with an altered story, Ultra Wormhole hunting, and Rainbow Rocket.
Heroes of Might and Magic II leans Optimization (Pure Optimization); Pokemon Ultra Sun 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.
Heroes of Might and Magic II
Turn-based clicking only
Pokemon Ultra Sun
Menu battles, zero dexterity
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Heroes of Might and Magic II
Hotseat duels reward mind games; AI is mappable
Pokemon Ultra Sun
Scripted bosses and trainers; PvP optional
Heroes of Might and Magic II leans a little harder on variance, though the gap is small.
Heroes of Might and Magic II
Map exploration, morale, luck, and combat rolls
Pokemon Ultra Sun
Wormhole legendaries and encounter RNG
Heroes of Might and Magic II leans a little harder on optimization, though the gap is small.
Heroes of Might and Magic II
Build orders, hero chaining, and creature math are deeply solvable
Pokemon Ultra Sun
Expanded Dex and tougher fights reward team 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.