head to head
Gears of War: ReloadedvsQuake 4
Gears of War: Reloaded leans Execution (Competitive PvP); Quake 4 leans Execution (Pure Mechanics).
Gears of War: ReloadedQuake 4
Axis by axis
Execution8 vs 8
Even - both lean on execution about the same.
Reads6 vs 5
Gears of War: Reloaded leans harder on reads: Versus humans, baiting pushes and reading flanks decides rounds
Variance2 vs 2
Even - both lean on variance about the same.
Optimization5 vs 4
Gears of War: Reloaded leans harder on optimization: Map control, power-weapon timing and campaign patterns are learnable
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.

