head to head
Super Smash Bros. Melee asks more than Gears of War: Ultimate Edition, and the gap is reads.

Execution · Competitive PvP
Cover-based shotgun duels testing movement execution and positional prediction in multiplayer.

Execution · Competitive PvP
A platform fighter with one of the highest execution ceilings in any competitive game, layered on top of deep human reads.
Gears of War: Ultimate Edition leans Execution (Competitive PvP); Super Smash Bros. Melee leans Execution (Competitive PvP).
Super Smash Bros. Melee leans clearly harder on execution.
Gears of War: Ultimate Edition
Wallbounce movement and gnasher duels demand real hands
Super Smash Bros. Melee
Wavedashing, L-cancels, and tech-chasing set an extreme physical ceiling
Super Smash Bros. Melee leans clearly harder on reads.
Gears of War: Ultimate Edition
Multiplayer is constant positional mind-games around cover
Super Smash Bros. Melee
Reading DI choices and opponent adaptive habits is constant and non-convergent
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Gears of War: Ultimate Edition
Weapon spawns timed and known; spread mildly random
Super Smash Bros. Melee
Stage hazard RNG and spawn positions add marginal chaos
Super Smash Bros. Melee leans clearly harder on optimization.
Gears of War: Ultimate Edition
Map control and spawn timing knowledge structure matches
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.