head to head
Borderlands 2 asks more than Cataclysm: Dark Days Ahead, and the gap is execution.

Optimization · Systems & Chaos
Loot-shooter RPG built on gear chasing.

Optimization · Systems & Chaos
An enormous open-world survival roguelike simulating everything from crafting to vehicle building after the apocalypse.
Borderlands 2 leans Optimization (Systems & Chaos); Cataclysm: Dark Days Ahead leans Optimization (Systems & Chaos).
Borderlands 2 leans clearly harder on execution.
Borderlands 2
Aim matters but generous hit feel
Cataclysm: Dark Days Ahead
Turn-based; only patience required
Borderlands 2 leans a little harder on reads, though the gap is small.
Borderlands 2
Enemies are scripted loot fodder
Cataclysm: Dark Days Ahead
Zombies and factions follow mappable behaviour
Cataclysm: Dark Days Ahead leans a little harder on variance, though the gap is small.
Borderlands 2
Procedurally generated weapon drops vary
Cataclysm: Dark Days Ahead
Procedural world and scavenging luck shape early survival
Cataclysm: Dark Days Ahead leans a little harder on optimization, though the gap is small.
Borderlands 2
Skill trees and gear math heavily solved
Cataclysm: Dark Days Ahead
Crafting, vehicles, and base systems reward near-endless mastery
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.