I have a 60 pound Golden Retriever in a rural area that is completely saturated with coyotes. She has "conversations" with them almost nightly over the fence. I'd bet on her to survive a couple of them, but of course a pack of eleven would be the end of her.
The coyotes haven't crossed the fence as far as I know, but it's barely five feet high, so they could hop it with ease if they wanted to. I want to get her a puppy for a companion, and one who could help in a fight. I've been thinking Labrador, but Great Pyrenees now also sounds like a good choice.