Well, excuse me, but that's exactly how it's designed...Barbarians get attack, Fortress gets defense...The game is actually quite enjoyable: some people like to rush the opponent, while others prefer to wait and slowly but surely defeat the enemy...In my opinion, that's how it should be! Each faction has its own strengths...
P.S. I've never liked playing as Dungeon – I don't think it's a very strong faction... And Darklings aren't among my favorite creatures...(THIS IS MY PERSONAL OPINION...and you shouldn't try to convince me otherwise!)
P.S. We won't argue:D, but it seems like Dungeon is a pretty powerful faction. Almost like Dungeon in Heroes 5:D