head to head
Age of Empires II: The Age of Kings asks more than Warhammer 40,000: Dawn of War II, and the gap is optimization.

Optimization · Grand Arena
The definitive medieval RTS where castle drops and farm economies decide empires.

Execution · Grand Arena
Hero-driven squad RTS where wargear optimization and ability timing combine with reading aggressive opponents.
Age of Empires II: The Age of Kings leans Optimization (Grand Arena); Warhammer 40,000: Dawn of War II leans Execution (Grand Arena).
Warhammer 40,000: Dawn of War II leans a little harder on execution, though the gap is small.
Age of Empires II: The Age of Kings
Micro, villager management, hotkey speed
Warhammer 40,000: Dawn of War II
Hero ability activation and squad retreat timing are mechanically demanding
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Age of Empires II: The Age of Kings
High-level play is predicting human openings
Warhammer 40,000: Dawn of War II
Opponent army composition and hero focus must be predicted
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Age of Empires II: The Age of Kings
Fog, map gen, civ matchups
Warhammer 40,000: Dawn of War II
Retreat damage, wargear drops, and map control variance add uncertainty
Age of Empires II: The Age of Kings leans clearly harder on optimization.
Age of Empires II: The Age of Kings
Build orders refined over two decades
Warhammer 40,000: Dawn of War II
Wargear builds and ability upgrade sequences are optimizable
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.