I won' t argue bow hunting is the most challenging. But as far as rewarding I view anytime regardless of the tool (gun, bow) I am out in nature hunting it is rewarding to me. I have said this before and will again, I could care less what I am toting as long as I am hunting.

Yes I have killed my fair share of game with the bow, but most of mine have been taken at eye level (on the Ground).

So whats more challenging hunting from the ground or perched in a tree?????
Point I am making with this we all have ability, opinion and experience that equate to challenging, rewards and pay offs personally, but the bottomline is we all just love to hunt.