head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Optimization · Pure Optimization
Dark remix of classic Hitman missions built on the same clockwork puzzle stealth.

Optimization · Pure Optimization
A third-person tower defense about funneling orc hordes into gleefully lethal trap corridors.
Hitman: Contracts leans Optimization (Pure Optimization); Orcs Must Die! 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.
Hitman: Contracts
Precise positioning and timed takedowns
Orcs Must Die!
Active shooting supplements the traps
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Hitman: Contracts
Scripted patrols and fixed reactions only
Orcs Must Die!
Orc waves follow fixed paths
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Hitman: Contracts
Unknown layouts and triggers on first attempts
Orcs Must Die!
Minor wave composition randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Hitman: Contracts
Route, disguise, and timing solve each mission
Orcs Must Die!
Trap placement and kill-corridor economics are the game
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.