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

Reads · Grand Arena
Cold-front sequel; same reads-heavy tactical RTS feel.

Optimization · Mind & Math
14-epoch RTS where economic scaling, epoch-rush timing, and civilization counter-picks span stone age to future war.
Company of Heroes 2 leans Reads (Grand Arena); Empire Earth leans Optimization (Mind & Math).
Company of Heroes 2 leans a little harder on execution, though the gap is small.
Company of Heroes 2
squad micro under pressure
Empire Earth
Epoch-spanning army micro and hero management need consistent attention
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Company of Heroes 2
1v1 flanks and feints
Empire Earth
Opponent epoch rush and civilization bonuses must be predicted
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Company of Heroes 2
true sight, fog, weather
Empire Earth
Map resource distribution adds uncertainty at start; converges quickly
Empire Earth leans a little harder on optimization, though the gap is small.
Company of Heroes 2
commander and build paths solved
Empire Earth
Epoch advancement timing and citizen allocation are near-optimally 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.