For roving/stumping and small game, it's hard to beat a back quiver. When I'm wearing a pack, however, I much prefer either a Safarituff or a leather side quiver that I got from KC Kreger (Oklahomaleatherman). I really love the back quiver because it just screams 'tradition', but when wearing a pack, they just don't work. My side quiver that I got from KC is a beautiful piece of leather classiness. The Safarituff is very functional, and the storage pouch makes it even moreso.
I also have an Asbell side quiver, but, although a good, functional piece of equipment, it collects dust while my other quivers get used regularly.
So many choices...