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 · Systems & Chaos
1940s detective procedural built around crime scenes and reading scripted interrogation tells.

Optimization · Systems & Chaos
Notorious FMV horror adventure of a writer unraveling her mansion's grisly past.
L.A. Noire leans Optimization (Systems & Chaos); Phantasmagoria leans Optimization (Systems & Chaos).
L.A. Noire leans a little harder on execution, though the gap is small.
L.A. Noire
Light shooting and driving, very forgiving
Phantasmagoria
Point-and-click with rare timed scenes
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
L.A. Noire
Suspects follow fixed scripts, never adapt
Phantasmagoria
Horror beats are fully scripted
L.A. Noire leans a little harder on variance, though the gap is small.
L.A. Noire
Interrogation tells and clues hidden until discovered
Phantasmagoria
Deaths and triggers unknown on first run
L.A. Noire leans a little harder on optimization, though the gap is small.
L.A. Noire
Evidence chains and question choices have fixed correct answers
Phantasmagoria
Linear puzzle chains with single solutions
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.