head to head
PlayStation All-Stars Battle Royale asks more than Sportsfriends, and the gap is optimization.

Execution · Competitive PvP
Sony's mascot brawler where only Super attacks score kills, making meter management the whole game.

Execution · Competitive PvP
Couch-competitive dexterity duels where reading the friend beside you wins games.
PlayStation All-Stars Battle Royale leans Execution (Competitive PvP); Sportsfriends leans Execution (Competitive PvP).
Sportsfriends leans a little harder on execution, though the gap is small.
PlayStation All-Stars Battle Royale
Combo routes into Super meter need decent but modest hands.
Sportsfriends
Pole vaults, joust balance and ball control demand real dexterity
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
PlayStation All-Stars Battle Royale
Super-only kills make baiting human opponents the core decision.
Sportsfriends
Couch opponents bait and adapt face-to-face every round
PlayStation All-Stars Battle Royale leans a little harder on variance, though the gap is small.
PlayStation All-Stars Battle Royale
Items and four-player chaos add mild randomness.
Sportsfriends
Arenas are fixed, nothing hidden
PlayStation All-Stars Battle Royale leans clearly harder on optimization.
PlayStation All-Stars Battle Royale
Meter-build efficiency per character is the solvable layer.
Sportsfriends
Minimal systems - the games are deliberately simple rulesets
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.