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
An aggressive soulslike about punishing fixed boss patterns with tight dodging.

Execution · Practiced Mastery
An action-survival loop driven by practiced crowd-control shooting and weapon-upgrade optimisation.
Bloodborne leans Execution (Practiced Mastery); Resident Evil 4 leans Execution (Practiced Mastery).
Bloodborne leans a little harder on execution, though the gap is small.
Bloodborne
Aggressive dodges and rally timing demand sharp hands.
Resident Evil 4
Crowd management requires precise, fast shooting under constant pressure
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Bloodborne
Bosses follow fixed movesets; no model of you.
Resident Evil 4
Ganados follow scripted group patterns, not player modelling
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Bloodborne
Chalice dungeon layouts and drops add some randomness.
Resident Evil 4
Minor drop RNG from enemies but encounters are fixed
Bloodborne leans a little harder on optimization, though the gap is small.
Bloodborne
Builds, weapons, and boss patterns are studyable and solvable.
Resident Evil 4
Weapon upgrading, positioning and merchant economy are solvable
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.