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 · Pure Optimization
An immersive sim testing route planning and augmentation builds over raw shooting skill.

Optimization · Pure Optimization
Sandbox assassination at its purest: stage the perfect accident and walk away.
Deus Ex: Human Revolution - Director's Cut leans Optimization (Pure Optimization); Hitman: Blood Money leans Optimization (Pure Optimization).
Deus Ex: Human Revolution - Director's Cut leans a little harder on execution, though the gap is small.
Deus Ex: Human Revolution - Director's Cut
Shooting works but stealth routes bypass most twitch demands
Hitman: Blood Money
Modest aim and sneak demands once a plan exists
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Deus Ex: Human Revolution - Director's Cut
Guard AI follows mappable patrol scripts, never adapting
Hitman: Blood Money
Crowds and guards run fixed routines
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Deus Ex: Human Revolution - Director's Cut
Vents, codes and routes are unknown until explored
Hitman: Blood Money
Accident opportunities hidden until discovered
Hitman: Blood Money leans a little harder on optimization, though the gap is small.
Deus Ex: Human Revolution - Director's Cut
Praxis builds and route planning through levels are the real game
Hitman: Blood Money
Accident-kill routing is a near-solvable planning puzzle
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.