Check the reviews on the Cabela's web site... I've found it really helpful.
They are both relatively light, and the advantage of the Lone Wolf is that it folds completely flat for carrying (you don't have the bands protruding while backpacking it). I also like the fact that the climbing bar isn't in your way when you're sitting in it.
Bass Pro should carry the Summit stands. I know they used to carry Lone Wolf too, but I think they don't stock them anymore. I ended up ordering mine from
Shooter's Choice in Waterloo.