head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Execution · Competitive PvP
A class-based objective shooter remembered for its parkour movement and rocky launch.

Execution · Competitive PvP
Classic licensed football testing input control and opponent pattern reading.
Brink leans Execution (Competitive PvP); FIFA Soccer 2005 leans Execution (Competitive PvP).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Brink
SMART parkour and gunfights demand FPS mechanics
FIFA Soccer 2005
Off-the-ball control and finishing timing are mechanical skill
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Brink
Human teams contest objectives and flank routes
FIFA Soccer 2005
Human opponents adjust attack patterns across a match
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Brink
Spawn and objective chaos adds noise
FIFA Soccer 2005
Bounces and keeper behaviour add minor chaos
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Brink
Class loadouts and objective timing are learnable
FIFA Soccer 2005
Formations and exploit plays of the era are learnable
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.