You cannot go wrong with the pac seat. It is expensive, and I thought I would never own one. I was hunting with some folks and one of the guys had one. Its like sitting in a lounge chair, seriously. Its even more comfortable than most of the chairs in my house. I have the hammock seat, and I made a torges style seat. These are both great seats also. I like the hammock seat if I am hiking for more than 3 or 4 miles. Other than that I will always grap the pacseat. If you can, find one you can sit in before you buy.
Good luck