head to head
StarCraft II: Wings of Liberty asks more than Warhammer 40,000: Dawn of War, and the gap is execution.

Execution · Grand Arena
Real-time strategy where hands, reads, and build optimization all matter at the top.

Reads · Grand Arena
Grimdark RTS where requisition nodes, squad reinforcement, and chapter counter-picks define competitive depth.
StarCraft II: Wings of Liberty leans Execution (Grand Arena); Warhammer 40,000: Dawn of War leans Reads (Grand Arena).
StarCraft II: Wings of Liberty leans clearly harder on execution.
StarCraft II: Wings of Liberty
APM, macro, micro-control under pressure
Warhammer 40,000: Dawn of War
Squad retreat timing and builder unit micro require practiced hands
StarCraft II: Wings of Liberty leans a little harder on reads, though the gap is small.
StarCraft II: Wings of Liberty
1v1 ladder vs adaptive humans modeling you
Warhammer 40,000: Dawn of War
Opponent chapter choice and rush timing must be predicted
Warhammer 40,000: Dawn of War leans a little harder on variance, though the gap is small.
StarCraft II: Wings of Liberty
map spawns minor; mostly known
Warhammer 40,000: Dawn of War
Relic capture variance and squad reinforcement timing add uncertainty
StarCraft II: Wings of Liberty leans a little harder on optimization, though the gap is small.
StarCraft II: Wings of Liberty
build orders, economy curves heavily solved
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.