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 · Light / Casual
Branching interactive thriller where QTE choices decide who survives the Origami Killer case.

Execution · Practiced Mastery
A remade survival-action game where resourcefulness against scripted threats defines the challenge.
Heavy Rain leans Execution (Light / Casual); The Last of Us Part I leans Execution (Practiced Mastery).
The Last of Us Part I leans a little harder on execution, though the gap is small.
Heavy Rain
QTE prompts under tension
The Last of Us Part I
stealth-combat needs aim and timing
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Heavy Rain
No adaptive opposition
The Last of Us Part I
scripted infected/human AI, no adaptation
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Heavy Rain
First-run uncertainty about consequences
The Last of Us Part I
loot and encounter variation
The Last of Us Part I leans a little harder on optimization, though the gap is small.
Heavy Rain
Branch knowledge fully solves outcomes
The Last of Us Part I
crafting and route planning matter
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.