Well the question is, Do you want Accuracy, Damage, or Speed
Accuracy and speed
If you want accuracy i suggest you triple heirloom your strong bow, it increases in speed , damage, and accuracy. Also if you chose to go horse archer this could be a huge difference
DAMAGE
This is what most people/Archers do (NA) This consist of a high STR build. In order to get high damage you must use the famous Longbow that does peirce. You will be slow but you will pack a punch
Arrows
If you truly dont know what to do or what bow to use i would heirloom the kerghit, WHY? Because if you heirloom the Bodkins you get less arrows and on +1 damage and if you heirloom the kerghit then you get more arrows but -1 damage. That 1 damage doesnt make a difference
PS/Edit: Dont use the Warbow, its pretty much useless , just use the strong bow if you are thinking of using the Warbow