Irish Wolfhound. The bigger the dog, the better. That being said I love wolves ;.; Seeing how I'm not allowed to own wolves, freaking Australian government worried about maulings, if a child gets eaten it's their problem .... but as I was saying ... given that option is out and if I had a large enough place I'd get an Irish Wolfhound.
...Or an Alaskan Malamute.
So pretty #.#