head to head
Super Smash Bros. Melee asks more than FIFA 16, and the gap is execution.

Execution · Competitive PvP
Mechanical football control plus predicting how a human opponent attacks.

Execution · Competitive PvP
A platform fighter with one of the highest execution ceilings in any competitive game, layered on top of deep human reads.
FIFA 16 leans Execution (Competitive PvP); Super Smash Bros. Melee leans Execution (Competitive PvP).
Super Smash Bros. Melee leans clearly harder on execution.
FIFA 16
Dribbling, defending and finishing inputs decide duels
Super Smash Bros. Melee
Wavedashing, L-cancels, and tech-chasing set an extreme physical ceiling
Super Smash Bros. Melee leans clearly harder on reads.
FIFA 16
Human opponents online adapt tactics match to match
Super Smash Bros. Melee
Reading DI choices and opponent adaptive habits is constant and non-convergent
FIFA 16 leans a little harder on variance, though the gap is small.
FIFA 16
Deflections and finishing randomness swing close games
Super Smash Bros. Melee
Stage hazard RNG and spawn positions add marginal chaos
Super Smash Bros. Melee leans clearly harder on optimization.
FIFA 16
Formations and squad construction reward study
Super Smash Bros. Melee
Character matchup tiers and optimal movement routing are deeply studied
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.