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
A class-based objective shooter remembered for its parkour movement and rocky launch.

Execution · Competitive PvP
Arcade wrestling testing combo execution and reversal mind-games against humans.
Brink leans Execution (Competitive PvP); WWE All Stars leans Execution (Competitive PvP).
Brink leans a little harder on execution, though the gap is small.
Brink
SMART parkour and gunfights demand FPS mechanics
WWE All Stars
Juggle combos and reversal timing drive every match
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
WWE All Stars
Human opponents bait reversals in constant mind-games
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
WWE All Stars
Slight hit randomness rarely decides outcomes
Brink leans a little harder on optimization, though the gap is small.
Brink
Class loadouts and objective timing are learnable
WWE All Stars
Class matchups and move properties are quickly 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.