At current the stats of the warbow outweight the longbow no matter what you do, it is more accurate, shoots nearly just as far and does far more damage, I would highly recommend using the warbow and even with the alleged buff for 2 pierce damage and 1 accuracy to the longbow, it still means that the warbow is the way to go!
Despite that, I created a longbowman, have done since day 1 (Other than my HA phase) and plan to stick to it because it looks so much better, especially now it doesn't look like a hunting bow when it's drawn back now!