head to head
Mount & Blade asks more than Red Dead Redemption 2, and the gap is optimization.

Optimization · Practiced Mastery
Sandbox warfare testing directional combat skill atop an optimisable army and trade economy.

Execution · Practiced Mastery
A cinematic open-world western leaning on shooting feel and atmosphere.
Mount & Blade leans Optimization (Practiced Mastery); Red Dead Redemption 2 leans Execution (Practiced Mastery).
Mount & Blade leans a little harder on execution, though the gap is small.
Mount & Blade
Directional blocking and couched-lance timing demand real skill
Red Dead Redemption 2
Gunplay and Dead Eye reward aim and timing.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Mount & Blade
AI lords and battle tactics are mappable scripts
Red Dead Redemption 2
Enemies use scripted AI patterns, not adaptation.
Mount & Blade leans a little harder on variance, though the gap is small.
Mount & Blade
World events, prices and tournaments shuffle each campaign
Red Dead Redemption 2
Some hunting and weather randomness, lightly hidden.
Mount & Blade leans clearly harder on optimization.
Mount & Blade
Army composition, trade economy and fief management drive conquest
Red Dead Redemption 2
Loadouts and routes solvable but loose.
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.