All of these units are about the same type of terrain (steep rugged and beautiful). I feel that all hold good populations of elk. I agree with elkaholicid about the use of topo maps. An idea if time allows, is you might try to make a july/august scouting trip. Even if its just for a few days it will give you an idea of the general area. And you can pick the area of your liking. Also about the wolves I have found that the elk seem shut up become call shy and even clear out of an area if a wolf pack is close by. The problem is the wolves move around a lot like the elk do, so you can't pinpoint on a map and say here are the wolves so lets avoid this area.