head to head
vs
Population: OnevsTetris 99
Population: One leans Execution (Competitive PvP); Tetris 99 leans Execution (Pure Mechanics).
Population: OneTetris 99
Axis by axis
Execution7 vs 9
Tetris 99 leans harder on execution: High-speed stacking and finesse define survival
Reads5 vs 4
Population: One leans harder on reads: Human squads adapt rotations and push timings
Variance4 vs 4
Even - both lean on variance about the same.
Optimization4 vs 5
Tetris 99 leans harder on optimization: Stacking theory and downstack efficiency are studied skills
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.