head to head
Borderlands 3 asks more than Diablo III, and the gap is execution.

Optimization · Practiced Mastery
Refined loot shooter with skill-tree builds.

Optimization · Pure Optimization
A pure loot-and-build treadmill where set-bonus optimisation and Rift pushing define performance.
Borderlands 3 leans Optimization (Practiced Mastery); Diablo III leans Optimization (Pure Optimization).
Borderlands 3 leans clearly harder on execution.
Borderlands 3
Tighter gunplay than predecessors
Diablo III
Greater Rift pushing has minor mechanical demand in builds
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Borderlands 3
Enemies scripted, no adaptive opponent
Diablo III
No meaningful adaptive opponent; co-op is cooperative
Borderlands 3 leans a little harder on variance, though the gap is small.
Borderlands 3
Weapon rolls and anointments randomize
Diablo III
Primal Ancient drops and set dungeon RNG drive the grind
Diablo III leans a little harder on optimization, though the gap is small.
Borderlands 3
Skill trees, anointments, gear math deep
Diablo III
Set bonuses and paragon levelling are almost entirely 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.