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

Reads · Competitive PvP
Anime arena fighter where managing the substitution gauge is the real duel.

Execution · Competitive PvP
Sony's mascot brawler where only Super attacks score kills, making meter management the whole game.
Naruto Shippuden: Ultimate Ninja Storm 4 leans Reads (Competitive PvP); PlayStation All-Stars Battle Royale leans Execution (Competitive PvP).
PlayStation All-Stars Battle Royale leans a little harder on execution, though the gap is small.
Naruto Shippuden: Ultimate Ninja Storm 4
Simple inputs; movement and substitution timing matter
PlayStation All-Stars Battle Royale
Combo routes into Super meter need decent but modest hands.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Naruto Shippuden: Ultimate Ninja Storm 4
Versus humans, baiting substitutions is the core game
PlayStation All-Stars Battle Royale
Super-only kills make baiting human opponents the core decision.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Naruto Shippuden: Ultimate Ninja Storm 4
Minor support-assist chaos
PlayStation All-Stars Battle Royale
Items and four-player chaos add mild randomness.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Naruto Shippuden: Ultimate Ninja Storm 4
Team composition and matchup knowledge
PlayStation All-Stars Battle Royale
Meter-build efficiency per character is the solvable layer.
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.
full breakdown
Naruto Shippuden: Ultimate Ninja Storm 4 →
full breakdown
PlayStation All-Stars Battle Royale →