head to head
vs
Super Smash Bros. for Wii UvsThe King of Fighters '99: Millennium Battle
Super Smash Bros. for Wii U leans Execution (Competitive PvP); The King of Fighters '99: Millennium Battle leans Execution (Competitive PvP).
Super Smash Bros. for Wii UThe King of Fighters '99: Millennium Battle
Axis by axis
Execution7 vs 8
The King of Fighters '99: Millennium Battle leans harder on execution: Strict combo inputs and striker timing demand trained hands
Reads7 vs 7
Even - both lean on reads about the same.
Variance2 vs 1
Super Smash Bros. for Wii U leans harder on variance: Tripping removed; only minor move RNG remains.
Optimization5 vs 5
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.