head to head
Super Smash Bros. Melee asks more than Team Fortress Classic, and the gap is reads.

Execution · Competitive PvP
A platform fighter with one of the highest execution ceilings in any competitive game, layered on top of deep human reads.

Execution · Competitive PvP
The original class-based capture-the-flag shooter built on Quake movement.
Super Smash Bros. Melee leans Execution (Competitive PvP); Team Fortress Classic leans Execution (Competitive PvP).
Super Smash Bros. Melee leans clearly harder on execution.
Super Smash Bros. Melee
Wavedashing, L-cancels, and tech-chasing set an extreme physical ceiling
Team Fortress Classic
Conc jumps, rocket aim, grenade timing demand sharp hands
Super Smash Bros. Melee leans clearly harder on reads.
Super Smash Bros. Melee
Reading DI choices and opponent adaptive habits is constant and non-convergent
Team Fortress Classic
Human defenders adapt chokes and offense routes constantly
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Super Smash Bros. Melee
Stage hazard RNG and spawn positions add marginal chaos
Team Fortress Classic
Open maps, little hidden information beyond flanks
Super Smash Bros. Melee leans clearly harder on optimization.
Super Smash Bros. Melee
Character matchup tiers and optimal movement routing are deeply studied
Team Fortress Classic
Class picks and map routes are learnable but shallow
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.