head to head
vs
Quake 4vsThe Showdown Effect
Quake 4 leans Execution (Pure Mechanics); The Showdown Effect leans Execution (Competitive PvP).
Quake 4The Showdown Effect
Axis by axis
Execution8 vs 7
Quake 4 leans harder on execution: Aimbot plus strafe-jump inputs dominate both campaign and multiplayer
Reads5 vs 5
Even - both lean on reads about the same.
Variance2 vs 2
Even - both lean on variance about the same.
Optimization4 vs 3
Quake 4 leans harder on optimization: Item control routes and weapon picks 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.