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.

Execution · Practiced Mastery
A stylish Suda51 action game following an executioner with a cybernetic arm.

Execution · Practiced Mastery
An open-world crime game where combat combos and driving skill carry the action.
Killer Is Dead leans Execution (Practiced Mastery); Sleeping Dogs leans Execution (Practiced Mastery).
Killer Is Dead leans a little harder on execution, though the gap is small.
Killer Is Dead
Dodge-burst timing drives stylish swordplay
Sleeping Dogs
brawling and driving need timing/aim
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Killer Is Dead
Enemies and bosses are scripted
Sleeping Dogs
scripted enemy AI, no adaptation
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Killer Is Dead
Encounters are fixed
Sleeping Dogs
minor loot and traffic randomness
Killer Is Dead leans a little harder on optimization, though the gap is small.
Killer Is Dead
Upgrade choices and boss pattern learning
Sleeping Dogs
upgrade paths and mission routes 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.