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.

Optimization · Mind & Math
14-epoch RTS where economic scaling, epoch-rush timing, and civilization counter-picks span stone age to future war.

Reads · Grand Arena
Grimdark RTS where requisition nodes, squad reinforcement, and chapter counter-picks define competitive depth.
Empire Earth leans Optimization (Mind & Math); Warhammer 40,000: Dawn of War leans Reads (Grand Arena).
Warhammer 40,000: Dawn of War leans a little harder on execution, though the gap is small.
Empire Earth
Epoch-spanning army micro and hero management need consistent attention
Warhammer 40,000: Dawn of War
Squad retreat timing and builder unit micro require practiced hands
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Empire Earth
Opponent epoch rush and civilization bonuses must be predicted
Warhammer 40,000: Dawn of War
Opponent chapter choice and rush timing must be predicted
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Empire Earth
Map resource distribution adds uncertainty at start; converges quickly
Warhammer 40,000: Dawn of War
Relic capture variance and squad reinforcement timing add uncertainty
Empire Earth leans a little harder on optimization, though the gap is small.
Empire Earth
Epoch advancement timing and citizen allocation are near-optimally solvable
Warhammer 40,000: Dawn of War
Requisition node priority and tech tree builds are well-studied
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.