head to head
vs
Sonic Adventure DX: Director's CutvsZombie Driver HD
Sonic Adventure DX: Director's Cut leans Execution (Practiced Mastery); Zombie Driver HD leans Execution (Practiced Mastery).
Sonic Adventure DX: Director's CutZombie Driver HD
Axis by axis
Execution6 vs 5
Sonic Adventure DX: Director's Cut leans harder on execution: High-speed 3D control and jank-wrangling demand real hands
Reads0 vs 0
Even - both lean on reads about the same.
Variance1 vs 2
Zombie Driver HD leans harder on variance: zombie-horde spawn randomness
Optimization4 vs 4
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.