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
An online multiplayer soccer game about positioning and outplaying human opponents.

Execution · Competitive PvP
A competitive party platformer where placing obstacles to block others while surviving your own traps tests both execution and social prediction.
Soccer Online: Ball 3D leans Execution (Competitive PvP); Ultimate Chicken Horse leans Execution (Competitive PvP).
Ultimate Chicken Horse leans a little harder on execution, though the gap is small.
Soccer Online: Ball 3D
Controlling shots and movement precisely matters in matches
Ultimate Chicken Horse
Precise platforming through player-built obstacle courses is the ceiling
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Soccer Online: Ball 3D
Outguessing human opponents' passes and positioning is constant
Ultimate Chicken Horse
Predicting what obstacles opponents will place is genuine social reads
Soccer Online: Ball 3D leans a little harder on variance, though the gap is small.
Soccer Online: Ball 3D
Some physics unpredictability but mostly skill-driven
Ultimate Chicken Horse
Block placement creates novel layouts each round
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Soccer Online: Ball 3D
Team coordination and positioning tactics reward planning
Ultimate Chicken Horse
Optimal obstacle placement strategies are learnable over sessions
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.