head to head
vs
Battle CityvsYoshi's Safari
Battle City leans Execution (Pure Mechanics); Yoshi's Safari leans Execution (Pure Mechanics).
Battle CityYoshi's Safari
Axis by axis
Execution7 vs 7
Even - both lean on execution about the same.
Reads0 vs 0
Even - both lean on reads about the same.
Variance2 vs 1
Battle City leans harder on variance: Spawn order and power-ups add mild randomness per stage
Optimization4 vs 3
Battle City leans harder on optimization: Base-defense positioning and brick management have known best answers
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.