I've hunted both. There are places where one can actually spot and stalk whitetails, out in the desert of West Texas, but like the Blacktails you speak of, they are heavy cover animals by nature. It's amazing how they can disappear in the desert unless the rut is on. I really prefer the mulie hunting I've done because it's spot and stalk, not just sitting in a stand dozing off waiting for a buck to walk by. I do mostly waterfowl hunting during the season anymore because deer hunting bores me. But, I do think a whitetail buck, a mature one, is harder than mulie by a country mile just due to terrain and the way they usually have to be hunted. Big racked mulies are intellegent, though, and didn't get to be the boss hoss by being stupid. Still, you CAN SEE out where they are. LOL Hell, I'd move to New Mexico if it weren't for my life long affection for waterfowl hunting. As it is, I'm planning a travel trailer and out of state license purchases in my future. LOL