tomcunButton fly is easy when you're used to it. You don't have to worry about the awkward zipper boner other jeans get, and you get cool button fades.
(source) I have 4 pairs of button fly and countless zipper and go to my button more (obviously)!
ChampionI agree, button fly is the most common choice with raw denim and is great once you're used to it. All of my jeans are button fly. Zippers are pretty rare on high-end denim because of their tendency to break after a while, the fact that they can get wonky after jeans stretch or shrink, and that they give you that awkward "zipper boner," for lack of a better phrase.
(source) I have 4 pairs of button fly and countless zipper and go to my button more (obviously)!