head to head
EarthBoundvsExist Archive: The Other Side of the Sky
EarthBound leans Optimization (Pure Optimization); Exist Archive: The Other Side of the Sky leans Optimization (Pure Optimization).
EarthBoundExist Archive: The Other Side of the Sky
Axis by axis
Execution2 vs 3
Exist Archive: The Other Side of the Sky leans harder on execution: Some platforming and combo timing in dungeons
Reads0 vs 1
Exist Archive: The Other Side of the Sky leans harder on reads: Enemies follow fixed patterns, not adaptive
Variance4 vs 4
Even - both lean on variance about the same.
Optimization7 vs 7
Even - both lean on optimization about the same.
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.

