head to head
vs
Risk of RainvsThe Binding of Isaac
Risk of Rain leans Optimization (Practiced Mastery); The Binding of Isaac leans Execution (Twitch Chaos).
Risk of RainThe Binding of Isaac
Axis by axis
Execution6 vs 7
The Binding of Isaac leans harder on execution: Twin-stick dodging through bullet-dense rooms
Reads0 vs 0
Even - both lean on reads about the same.
Variance6 vs 7
The Binding of Isaac leans harder on variance: Item and room RNG defines every run
Optimization7 vs 6
Risk of Rain leans harder on optimization: Item stacking and time-pressure routing is solvable.
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.