head to head
Neither is simply harder - they are hard in different places. Garou: Mark of the Wolves demands more execution; Warcraft III: Reign of Chaos demands more variance.

Execution · Grand Arena
A SNK classic where Just Defend forces constant read-off decisions and T.O.P. activation rewards deep optimisation.

Optimization · Grand Arena
Blizzard's hero-centric RTS where build-order theory meets surgical unit micro against humans.
Garou: Mark of the Wolves leans Execution (Grand Arena); Warcraft III: Reign of Chaos leans Optimization (Grand Arena).
Garou: Mark of the Wolves leans clearly harder on execution.
Garou: Mark of the Wolves
Just Defend timing and T.O.P. combo precision demand high execution
Warcraft III: Reign of Chaos
Micro of heroes and units decides fights
Garou: Mark of the Wolves leans clearly harder on reads.
Garou: Mark of the Wolves
Just Defend is a pure read mechanic against an adaptive opponent
Warcraft III: Reign of Chaos
Scouting and out-guessing a human opponent's tech
Warcraft III: Reign of Chaos leans clearly harder on variance.
Garou: Mark of the Wolves
No RNG; all match states are visible
Warcraft III: Reign of Chaos
Creep routes and item drops add randomness
Warcraft III: Reign of Chaos leans a little harder on optimization, though the gap is small.
Garou: Mark of the Wolves
T.O.P. activation timing and matchup frame data are well-studied
Warcraft III: Reign of Chaos
Build orders, creeping routes, and matchup theory run deep
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.