I'd go with the hound if it is a mix. The coonhound will be very smart and a lot of work to train and control. The shepherd mix is loyal but can be so loyal that it can be too protective if challenged. You may never be able to have friends come over if you live with the dog alone.
The hound will be easily trained, controllable, and not averse to being on a leash all the time. Many other dogs don't like the leash and fight against it. Hounds enjoy structure, so training is a MUST with this type of dog. Strict control is something they thrive on and in fact, need.

Good luck. Whatever you choose, train the dog well so that it stays safe in any environment.
Tina