Being so calculative about stats won't get you much of an advantage. The Pendor archers are good for taking down most troops save for certain unique spawns, and are easier to acquire, train and maintain than the Ravenstern ones. So I don't give a damn whether or not they deal less damage, which is understandable considering that they have a lower upkeep.
And if I want anything dealt with at a longer range, there is a reason why crossbowmen exist. There is also a reason why different variety of troops exist. If you like Rangers, fine. I like Armored Bowmen, they help me win the game, that's good enough for me.