head to head
vs
Battlefield 3vsCall of Duty: Modern Warfare 2
Battlefield 3 leans Execution (Competitive PvP); Call of Duty: Modern Warfare 2 leans Execution (Competitive PvP).
Battlefield 3Call of Duty: Modern Warfare 2
Axis by axis
Execution7 vs 8
Call of Duty: Modern Warfare 2 leans harder on execution: Fast time-to-kill rewards raw aim and reflex
Reads5 vs 6
Call of Duty: Modern Warfare 2 leans harder on reads: Outguessing human rotations and flanks
Variance3 vs 3
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.