head to head
Neither is simply harder - they are hard in different places. Company of Heroes 2 demands more execution; SpyParty demands more reads.

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

Reads · Pure Mind Games
A spy performs missions at a cocktail party while a sniper studies the crowd for one inhuman tell.
Company of Heroes 2 leans Reads (Grand Arena); SpyParty leans Reads (Pure Mind Games).
Company of Heroes 2 leans clearly harder on execution.
Company of Heroes 2
squad micro under pressure
SpyParty
Sniper aim and spy input precision matter at high level.
SpyParty leans clearly harder on reads.
Company of Heroes 2
1v1 flanks and feints
SpyParty
Pure 1v1 behavioral modeling; both players adapt endlessly.
SpyParty leans a little harder on variance, though the gap is small.
Company of Heroes 2
true sight, fog, weather
SpyParty
Mission sets and partygoer randomness add modest noise.
Company of Heroes 2 leans clearly harder on optimization.
Company of Heroes 2
commander and build paths solved
SpyParty
Tells, timings, and mission orders reward deep study.
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.