head to head
StarCraft asks more than Overwatch, and the gap is optimization.

Execution · Grand Arena
Team hero shooter blending FPS mechanics with ability economy mind games.

Optimization · Grand Arena
A real-time strategy classic where perfected build orders and mechanical speed decide most matches.
Overwatch leans Execution (Grand Arena); StarCraft leans Optimization (Grand Arena).
Overwatch leans a little harder on execution, though the gap is small.
Overwatch
Hero aim, movement, and ability timing
StarCraft
APM and micro control ceiling is huge
Overwatch leans a little harder on reads, though the gap is small.
Overwatch
Ult tracking, flanks, and baiting human teams
StarCraft
scouting and predicting human opponent builds
Overwatch leans a little harder on variance, though the gap is small.
Overwatch
Minor spread and matchmaking noise
StarCraft
minimal hidden info beyond fog of war
StarCraft leans clearly harder on optimization.
Overwatch
Team comps, ult economy, and positioning theory
StarCraft
build orders and economy are near-solvable
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.