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
The Dreamcast classic that defined weapons-based 3D fighting with fluid eight-way movement.

Execution · Competitive PvP
A lightning-fast competitive disc-throwing game that plays like Pong as a fighting game.
Soulcalibur leans Execution (Competitive PvP); Windjammers leans Execution (Competitive PvP).
Windjammers leans a little harder on execution, though the gap is small.
Soulcalibur
Eight-way run and precise spacing reward sharp movement hands.
Windjammers
Split-second disc returns and supers demand reflexes
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Soulcalibur
Mid-low-throw mixups and Guard Impact baits against adapting opponents.
Windjammers
Human opponents bait, feint, and adapt every rally
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Soulcalibur
Fully deterministic; no hidden systems.
Windjammers
Almost no hidden information on the court
Soulcalibur leans a little harder on optimization, though the gap is small.
Soulcalibur
Ring-out positioning and frame knowledge are deeply labbable.
Windjammers
Character matchups and angle theory are studyable
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.