Scootrd,
Can't give you any hands on experience regarding these specific packs, but I would recommend going for the lowest possible profile you can find. I just returned from a trip where I used my Hunters Element Elevation pack and it was a little too high when crawling under brush ect. Out of the 2 you've choosen I like the Whitetail as it tapers away from your shoulders which should save it from snagging on brush. I've got the Badlands Bino Case (with the magnetic) opening and it's excellent. I'm thinking of either the Mag fanny (I really love the magnetic opening, very quiet), or the Monster as they are low on your back. Good luck with your purchase.
Cheers
Craig