head to head
Brawl Stars asks more than Spy vs Spy, and the gap is execution.

Execution · Competitive PvP
Supercell's snappy top-down team brawler built around three-minute objective fights.

Reads · Pure Mind Games
A split-screen trap duel testing prediction of where your human rival hid the bombs.
Brawl Stars leans Execution (Competitive PvP); Spy vs Spy leans Reads (Pure Mind Games).
Brawl Stars leans clearly harder on execution.
Brawl Stars
Aim, dodging, and ability timing in real time
Spy vs Spy
Simple movement and item fiddling under time pressure
Spy vs Spy leans a little harder on reads, though the gap is small.
Brawl Stars
Human teams rotate, bait supers, and adapt
Spy vs Spy
Guessing where the rival spy laid traps is the core duel
Spy vs Spy leans a little harder on variance, though the gap is small.
Brawl Stars
Bush ambushes and power-cube spawns hide information
Spy vs Spy
Item locations are hidden information each round
Brawl Stars leans a little harder on optimization, though the gap is small.
Brawl Stars
Brawler matchups and map strategy are learnable
Spy vs Spy
Trap-and-counter knowledge forms a learnable layer
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.