Your opinions on good dog breeds please

There are a lot of breeds that are protective of their pack (you). Shepherds and Shepherd/crosses to name a couple. Almost any breed can be trained to be protective but shepherds and rotties seem to come by it naturally. Having said that I haven't seen that side of my shepherd yet but he's only 9 months. You want a dog that is protective when you need it to be but not all the time or you won't have any friends left and that takes some training. I also have a hound lab cross with a very deep bark. He's harmless but if you don't know him he'll scare the sh@!#t out of you because of his bark. People usually won't come in the door unless one of us is there.

Bill