I vote for Siberian Huskys. They religiously announce any thing and anyone that steps on the property. However, they will not attack.
You want attack dogs you know where to go and buy more insurance.
They can live outside in NW weather without a problem. In summer
they shed. They play with the grandkids, 3 to 11, with gusto.
Placing themselves twixt a potential threat and the kids or other 'pack'
members is commonplace. Akela one of the males kicks a Bull Mastiff's
butt regularly.
So I am opinionated, I like wolves and coyotes too.