I hate this type of comparison.
Its like compering apples with oranges or chess game with draughts (checkers).

Sure EU can do very good AI for draughts but that doesnt mean they can make as spectacular AI for chess game.
RTW is much more complex. It gives much more option and tactics.
Its really flexible and well humans are very good at exploring this.
If Your tactic/strategy fails well no problem there are thousands more to try out and maching human ingenuity with AI its incredibly difficult task.