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.

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

Execution · Competitive PvP
A wrestling game about timing grapples and, versus humans, reading reversals.
PlayStation All-Stars Battle Royale leans Execution (Competitive PvP); WCW/nWo Thunder leans Execution (Competitive PvP).
PlayStation All-Stars Battle Royale 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.
WCW/nWo Thunder
Grapple and strike timing decide exchanges
PlayStation All-Stars Battle Royale leans a little harder on reads, though the gap is small.
PlayStation All-Stars Battle Royale
Super-only kills make baiting human opponents the core decision.
WCW/nWo Thunder
Human opponents must be anticipated and countered
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
PlayStation All-Stars Battle Royale
Items and four-player chaos add mild randomness.
WCW/nWo Thunder
Reversal windows add some unpredictability
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
PlayStation All-Stars Battle Royale
Meter-build efficiency per character is the solvable layer.
WCW/nWo Thunder
Move-set knowledge and stamina management matter
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.