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 · Twitch Chaos
Dodging bullets while leveraging encyclopedic item knowledge against heavy run RNG.

Optimization · Practiced Mastery
Fantasy looter shooter with class hybrids.
The Binding of Isaac: Repentance leans Execution (Twitch Chaos); Tiny Tina's Wonderlands leans Optimization (Practiced Mastery).
The Binding of Isaac: Repentance leans a little harder on execution, though the gap is small.
The Binding of Isaac: Repentance
Dodging dense bullet patterns while aiming is constant pressure
Tiny Tina's Wonderlands
Gunplay similar to Borderlands 3
Tiny Tina's Wonderlands leans a little harder on reads, though the gap is small.
The Binding of Isaac: Repentance
Enemies are random or scripted, never modelling you
Tiny Tina's Wonderlands
Scripted fantasy enemies, no reads
The Binding of Isaac: Repentance leans a little harder on variance, though the gap is small.
The Binding of Isaac: Repentance
Item pools and room rolls reshape every run
Tiny Tina's Wonderlands
Loot rolls and Chaos Chamber RNG
Tiny Tina's Wonderlands leans a little harder on optimization, though the gap is small.
The Binding of Isaac: Repentance
Knowing hundreds of item synergies converts RNG into wins
Tiny Tina's Wonderlands
Dual classes and spell builds deep
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.