head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is reads, and it is a single point.

Reads · Grand Arena
Modern-warfare RTS with general-specific powers where faction counters and production efficiency are central.

Reads · Grand Arena
A team MOBA where map control and adaptive duels decide objectives.
Command & Conquer: Generals leans Reads (Grand Arena); League of Legends leans Reads (Grand Arena).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Command & Conquer: Generals
Supply drop timing and unit special abilities require precise activation
League of Legends
Mechanics matter but not aimbot-decisive.
League of Legends leans a little harder on reads, though the gap is small.
Command & Conquer: Generals
Three-faction asymmetry and general powers must be predicted constantly
League of Legends
Lane and jungle constantly mind-game opponents.
League of Legends leans a little harder on variance, though the gap is small.
Command & Conquer: Generals
Supply depot placement is map-fixed; minimal in-game RNG
League of Legends
Champion select and minor RNG only.
League of Legends leans a little harder on optimization, though the gap is small.
Command & Conquer: Generals
General power sequencing and unit composition are well-solvable
League of Legends
Itemization, wave management, and macro are 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.