head to head
vs
Bloons TD 6vsFire 'n Ice
Bloons TD 6 leans Optimization (Pure Optimization); Fire 'n Ice leans Optimization (Pure Optimization).
Bloons TD 6Fire 'n Ice
Axis by axis
Execution1 vs 2
Fire 'n Ice leans harder on execution: minor timing in ice-sliding puzzles
Reads0 vs 0
Even - both lean on reads about the same.
Variance1 vs 1
Even - both lean on variance about the same.
Optimization9 vs 8
Bloons TD 6 leans harder on optimization: Tower placement, upgrades, and economy are near-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.