head to head
Neither is simply harder - they are hard in different places. League of Legends demands more optimization; Overwatch demands more execution.

Reads · Grand Arena
A team MOBA where map control and adaptive duels decide objectives.

Execution · Grand Arena
Team hero shooter blending FPS mechanics with ability economy mind games.
League of Legends leans Reads (Grand Arena); Overwatch leans Execution (Grand Arena).
Overwatch leans clearly harder on execution.
League of Legends
Mechanics matter but not aimbot-decisive.
Overwatch
Hero aim, movement, and ability timing
League of Legends leans a little harder on reads, though the gap is small.
League of Legends
Lane and jungle constantly mind-game opponents.
Overwatch
Ult tracking, flanks, and baiting human teams
League of Legends leans a little harder on variance, though the gap is small.
League of Legends
Champion select and minor RNG only.
Overwatch
Minor spread and matchmaking noise
League of Legends leans clearly harder on optimization.
League of Legends
Itemization, wave management, and macro are solvable.
Overwatch
Team comps, ult economy, and positioning theory
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.