First off, I'd kill a zebra, if not for the rug, for the simple fact that it would probably make good lion bait.
Taking down a wolf would be nice to the elk and moose, predator control. It's been a long time coming and if it's ever allowed, I want to do it. I also think there would be a challenge to it. Somebody might be able to knock down a baker's dozen in a rancher's pasture under the right circumstances, but nailing a wild wolf on public land might involve more difficulties than most give it credit for. Most of all, it would be FUN, that's why.
I'd like to line up a stringer of wolf hides in my den, all different colors and sizes. Much better than shooting them in the ass and watching them limp off to be eaten by the rest of their pack.