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
Wrestling-style timing duels with grapple prediction against human opponents.
Brink leans Execution (Competitive PvP); Def Jam Vendetta leans Execution (Competitive PvP).
Brink leans a little harder on execution, though the gap is small.
Brink
SMART parkour and gunfights demand FPS mechanics
Def Jam Vendetta
Grapple timing and reversal windows demand sharp inputs
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
Def Jam Vendetta
Human matches turn on predicting grapples versus strikes
Brink leans a little harder on variance, though the gap is small.
Brink
Spawn and objective chaos adds noise
Def Jam Vendetta
Nothing hidden once movesets are learned
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
Def Jam Vendetta
Character move pools and reversal systems are mappable
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.