Bow quiver, and this is coming from someone that HATES shooting with a bow quiver. I always take it off at the tree. To me, leaving it on is like buying a $1000 golf club and then using it with a golf ball holder attached to it. A goal this year is to hold my nose and practice more with it on the bow. I use a Kwikee 3 arrow, so it comes off pretty easily and it light. I can't imagine using one of these arrow 30-packs that look like bars at the zoo.
If you fall and the arrows are on your bow, and the bow is in your hand, then you can toss the bow (or at least control it a little bit) and then not get stabbed. Imagine slipping and falling down a hill with arrows on your back and as you tumble hearing them hit the ground ahead of you. For trad guys, the ol' robin hood back quiver looks really old timey....but just remember that back then people would sometimes walk off into the woods and then you'd never see the again.