I have always enjoyed the way a quiver on my bow feels. At least for me, it give a little extra mass weight to the bow that allows me to hold it a little steadier.
I have used, and continue to use the Selway slide ons, bolt ons, and a big fan of the Great Northern quivers.
I use these quivers even when I have my Cat Quiver on my back. I most often carry my Cat Quiver when small game hunting, or when packing into the high country for several days.
I can then carry a variety of heads, I do practice with my quiver on my bows, with one arrow out or with the quiver full.
It is just my preference, I just feel I can load a second arrow faster from the bow quiver than I can from a back, or side quiver. I also believe that for the most part, a bow quiver is easier to get through the brush than most quivers, and have a tendency to be quieter.