head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is reads, and it is a single point.

Execution · Practiced Mastery
A psychological action-horror story about a writer fighting darkness with a flashlight.

Optimization · Practiced Mastery
A PSP stealth-action side story following Altair's hunt for Templars on Cyprus.
Alan Wake leans Execution (Practiced Mastery); Assassin's Creed: Bloodlines 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.
Alan Wake
Flashlight-then-shoot timing and dodges
Assassin's Creed: Bloodlines
Simplified PSP combat and climbing demand little precision
Assassin's Creed: Bloodlines leans a little harder on reads, though the gap is small.
Alan Wake
Taken spawn on triggers, never adapt
Assassin's Creed: Bloodlines
Templar guards are entirely scripted
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Alan Wake
Ambush placements surprise once
Assassin's Creed: Bloodlines
Compact fixed maps leave few surprises
Assassin's Creed: Bloodlines leans a little harder on optimization, though the gap is small.
Alan Wake
Resource management and set encounters learnable
Assassin's Creed: Bloodlines
Route knowledge and counter timing are quickly solved
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.