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.

Optimization · Practiced Mastery
Family-friendly dungeon crawler that swaps Minecraft's building for loot and hack-and-slash.
Borderlands: The Pre-Sequel leans Optimization (Practiced Mastery); Minecraft Dungeons leans Optimization (Practiced Mastery).
Borderlands: The Pre-Sequel leans a little harder on execution, though the gap is small.
Borderlands: The Pre-Sequel
Low-gravity movement and aim are moderate demands
Minecraft Dungeons
Dodge-rolls and kiting through mob swarms
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
Minecraft Dungeons
Enemies are scripted hordes
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
Minecraft Dungeons
Random loot and enchantment rolls drive power
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
Minecraft Dungeons
Gear synergies and enchant builds carry difficulty
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.