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 · Pure Mechanics
Combo execution and dodge timing through scripted grindhouse brawls.
Killer Is Dead leans Execution (Practiced Mastery); Shank leans Execution (Pure Mechanics).
Shank leans a little harder on execution, though the gap is small.
Killer Is Dead
Dodge-burst timing drives stylish swordplay
Shank
Combo juggling and dodge timing carry every brawl
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
Shank
Enemies and bosses attack on fixed patterns
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
Shank
Hand-built levels with no randomness
Killer Is Dead leans a little harder on optimization, though the gap is small.
Killer Is Dead
Upgrade choices and boss pattern learning
Shank
Weapon-swap combo routing rewards some lab work
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.