If it were my decision, I'd go with the Tomohawk hands down. But, why limit yourself? Idon't believe, but maybe I'm wrong that the tomohawk by 3rivers is a custom bow, meaning itis only available in a certain wood combination and only a 28" draw. But it sure has the price tag of one, even more then some quality custom bows.
As far as the feathers, there are some products out there that can keep your feathers somewhat dry. I just use hair spray usually. And rotate the arrows when needed.Make sure you have a quiver that will also keep the fletchings dry.
Once most people start shooting off the shelf on a wood bow, they nevergo back.