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

Optimization · Practiced Mastery
Planning squad approaches to scripted missions where one mistake kills.

Optimization · Practiced Mastery
Sandbox warfare testing directional combat skill atop an optimisable army and trade economy.
Hidden & Dangerous 2 leans Optimization (Practiced Mastery); Mount & Blade leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Hidden & Dangerous 2
Deliberate aim and stealth movement punish sloppy hands
Mount & Blade
Directional blocking and couched-lance timing demand real skill
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Hidden & Dangerous 2
German AI follows patrol scripts, not adapting to you
Mount & Blade
AI lords and battle tactics are mappable scripts
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Hidden & Dangerous 2
Patrol routes and enemy positions are unknown first attempt
Mount & Blade
World events, prices and tournaments shuffle each campaign
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Hidden & Dangerous 2
Squad planning, loadouts and approach routing decide missions
Mount & Blade
Army composition, trade economy and fief management drive conquest
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.