Following. I'm in the market for a new one next season.
May help to consider how you envision using the pack, and what you may carry in it. I started using a fanny pack because I couldn't wear a backpack while carrying my climber stand on my back. Once on stand, I pulled out the things I wanted on-hand, and then clipped the fanny pack to the side of my stand, letting it dangle out of the way. I do not like wearing it in the stand, as I like to keep my bow in my lap.
Takeaway: If you plan to use it simply to transport things to and from stand, just make sure it has enough room for your gear. Get one with a large main pocket. The way that gear is organized is far less important. Pull out your rangefinder and calls when on-stand and hang them from a hook in the tree. Better yet, if you use a climber, forego the fanny pack and buy these bad boys: http://www.sportsmansguide.com/product/i...-bags?a=1342956
If you plan to wear the fanny pack on-stand, or if you plan to spot and stalk, organization likely becomes paramount. Plan out what gear you will carry and evaluate from there. My advice here is to make sure your range finder and calls are readily accessible, without having to dig for them. Dedicated pockets are best so that other things don't shift into the way or snag the strings on your rangefinder and calls. Bowhunting is an up close and personal activity, so removing and stowing things needs to be quiet, fast, and with minimal movement required. Ask me how I know
Finally, get one with a water bottle pocket or two! If you plan to hunt out west, one with two water bottle pockets would be great - put a water bottle in one, and put your bear spray in the other. Always quickly accessible!