head to head
vs
Gears of War 2vsHalo 3
Gears of War 2 leans Execution (Practiced Mastery); Halo 3 leans Execution (Pure Mechanics).
Gears of War 2Halo 3
Axis by axis
Execution7 vs 8
Halo 3 leans harder on execution: Precision aim and grenade-melee timing
Reads4 vs 5
Halo 3 leans harder on reads: Equal-start fights reward predicting humans
Variance2 vs 2
Even - both lean on variance about the same.
Optimization5 vs 5
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.