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 · Practiced Mastery
Open-world Hyrule built on physics puzzles and exploration over reflex tests.

Optimization · Practiced Mastery
An open-world action game where hacking the city's infrastructure is your main weapon.
The Legend of Zelda: Breath of the Wild leans Optimization (Practiced Mastery); Watch Dogs leans Optimization (Practiced Mastery).
Watch Dogs leans a little harder on execution, though the gap is small.
The Legend of Zelda: Breath of the Wild
Parry timing and aiming matter but forgiving.
Watch Dogs
Cover shooting and driving at modest difficulty
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
The Legend of Zelda: Breath of the Wild
Enemies follow fixed scripted behaviors.
Watch Dogs
Online invasions add a small human element
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
The Legend of Zelda: Breath of the Wild
Weapon drops and weather lightly randomized.
Watch Dogs
Guard placements are knowable on approach
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
The Legend of Zelda: Breath of the Wild
Shrines, cooking, traversal routes fully solvable.
Watch Dogs
Hacking chains and camera routes make stealth 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.