head to head
vs
12 is Better Than 6vsMario Bros.
12 is Better Than 6 leans Execution (Practiced Mastery); Mario Bros. leans Execution (Pure Mechanics).
12 is Better Than 6Mario Bros.
Axis by axis
Execution7 vs 7
Even - both lean on execution about the same.
Reads0 vs 1
Mario Bros. leans harder on reads: Versus mode adds light human interference, enemies are scripted
Variance2 vs 2
Even - both lean on variance about the same.
Optimization5 vs 4
12 is Better Than 6 leans harder on optimization: Each room becomes a learnable clear order
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.