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

Optimization · Pure Optimization
A watercolor tactical RPG mixing turn-based command with real-time aiming.
The Witcher leans Optimization (Pure Optimization); Valkyria Chronicles 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
Valkyria Chronicles
Manual third-person aiming inside turns helps
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
Valkyria Chronicles
Enemy AI is scripted and exploitable
Valkyria Chronicles leans a little harder on variance, though the gap is small.
The Witcher
Some unknown quest outcomes on first play
Valkyria Chronicles
Accuracy rolls and interception fire add noise
Valkyria Chronicles leans a little harder on optimization, though the gap is small.
The Witcher
Signs, potions, and style matchups form the real game
Valkyria Chronicles
Unit positioning, class use, and turn routing dominate
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.