RE: If you could hunt anywhere....
I have more than 3. I think if I could do each once successfully, I'd be happy and feel fulfilled.
In order of priority:
Caribou in AK
Elk wherever I would have a best chance at a good one with OTC tags
Moose in AK
Midwest whitetail hunt - w/ a chance to at least see and hunt in the presence of true B&C caliber bucks.