head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is reads, and it is a single point.

Execution · Competitive PvP
Movement-heavy shooting where map control and reading enemy pushes decide matches.

Execution · Competitive PvP
The N64 original that turned Nintendo mascots into a percent-and-knockback platform fighter.
Splatoon 3 leans Execution (Competitive PvP); Super Smash Bros. leans Execution (Competitive PvP).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Splatoon 3
Aim, squid movement and ink mobility decide engagements
Super Smash Bros.
Z-cancels and DI demand fast precise inputs despite simple controls.
Super Smash Bros. leans a little harder on reads, though the gap is small.
Splatoon 3
Turf and ranked battles hinge on predicting adapting human squads
Super Smash Bros.
Edgeguard and tech-chase guessing against adapting humans decides stocks.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Splatoon 3
Matchmaking and special timing add modest noise
Super Smash Bros.
Item spawns add randomness; tournament rules strip most of it.
Splatoon 3 leans a little harder on optimization, though the gap is small.
Splatoon 3
Gear builds, weapon kits and map control patterns are studied
Super Smash Bros.
Stage positioning and percent-based kill setups are learnable.
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.