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 · Practiced Mastery
A moon-set Borderlands entry adding low gravity and oxygen mechanics.

Execution · Practiced Mastery
Loot-driven co-op heist shooter where builds and route knowledge make perfect crimes.
Borderlands: The Pre-Sequel leans Optimization (Practiced Mastery); Payday 2 leans Execution (Practiced Mastery).
Payday 2 leans a little harder on execution, though the gap is small.
Borderlands: The Pre-Sequel
Low-gravity movement and aim are moderate demands
Payday 2
Sustained gunfights and stealth execution under pressure
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Borderlands: The Pre-Sequel
Scripted enemies only
Payday 2
Cops and guards follow spawn scripts
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Borderlands: The Pre-Sequel
Loot RNG remains central
Payday 2
Random vault locations, guard patrols, and escrow rolls
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Borderlands: The Pre-Sequel
Oz-kit builds and gear synergy decide power
Payday 2
Skill builds and stealth route planning per heist
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.