head to head
vs
Rain WorldvsThe Binding of Isaac
Rain World leans Variance (Twitch Chaos); The Binding of Isaac leans Execution (Twitch Chaos).
Rain WorldThe Binding of Isaac
Axis by axis
Execution6 vs 7
The Binding of Isaac leans harder on execution: Twin-stick dodging through bullet-dense rooms
Reads1 vs 0
Rain World leans harder on reads: Predator AI is dynamic simulation, not modeling of you
Variance7 vs 7
Even - both lean on variance about the same.
Optimization5 vs 6
The Binding of Isaac leans harder on optimization: Item synergy knowledge converts luck into wins
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.