A lot of people criticize them (not 100% sure why), but I used my brother's Outdoorsmans Optics hunter pack this last season for both turkey and elk, and I thought it was great. For turkey I used it as a day pack and carried it all day long - it was quite comfortable. For elk, I packed in about 3 miles with about a 40lb pack, again - no problems, very comfortable. Also used it as a day pack, just tightened down. Didn't kill an elk, so don't have experience hauling heavy meat, but have tested it with an 80lb bag of concrete and once again, it was very comfortable.
Packs are like scotch - no one can tell you what you will like, and you won't know yourself until you try it. Try to get your hands on a few. As an aside, my brother also has a Dana Terraplane (Bozeman), and I thought it was fairly uncomfortable. Everyone is different.