head to head
Super Smash Bros.vsX-Men: Next Dimension
Super Smash Bros. leans Execution (Competitive PvP); X-Men: Next Dimension leans Execution (Competitive PvP).
Super Smash Bros.X-Men: Next Dimension
Axis by axis
Execution7 vs 7
Even - both lean on execution about the same.
Reads7 vs 6
Super Smash Bros. leans harder on reads: Edgeguard and tech-chase guessing against adapting humans decides stocks.
Variance2 vs 2
Even - both lean on variance about the same.
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.

