We do have some of the best breed profiles out there.. so here is the one for the Italian Cane Corso and the American Bulldog. The dogs will be fine in winter, after all, they will be inside most of the time. I know dogs in Michigan that spend a lot of time outside during the winter and they seem to enjoy frolicking in the snow. Other dogs to add to the mix would be an Alaskan Malamute or an Akita. They would do well inside and outside and have protective tendancies though not at the level of the aforementioned breeds.

Lastly - you may want to look at the Central Asian Ovcharka which in some respects is a milder version of the Caucasian