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
CD Projekt's first RPG, a dark fantasy of monster contracts and morally gray choices.

Optimization · Pure Optimization
An open-world fantasy RPG whose modular magic and crafting systems reward heavy theorycrafting.
The Witcher leans Optimization (Pure Optimization); Two Worlds 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.
The Witcher
Rhythm-click combat needs only loose timing
Two Worlds II
Loose action combat, low ceiling
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
The Witcher
Enemies follow fixed styles and weaknesses
Two Worlds II
Enemies follow fixed AI
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
The Witcher
Some unknown quest outcomes on first play
Two Worlds II
Loot rolls and unexplored map
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
The Witcher
Signs, potions, and style matchups form the real game
Two Worlds II
Spell-card crafting and builds break the game
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.