What's your favorite guard breed?

Can you define "Guard breed"?  Personal protection, alert dog, livestock guardian, farm guardian, household guardian?

For a household guardian dog that I'd trust with my kids, and anyone else really, unless there were a clear and present danger - Leonberger wins hands down.  An impressive yet fun and goodnatured dog.

Farm guardian, Johnny-fell-in-the-well type dog - either Catahoula, Spanish Water Dog, or English shepherd.  Probably SWD.

Personal protection: Ring-trained Bouvier.  Now there's a freakin' scary dog.

Alert dog:  any random shepherdy looking mutt.  got two great ones right here - one old and one in training.

Livestock guardian:  Well, duh.    Maremma sheepdog.  I doubt you were asking that but I just gotta put in a word for one of my fav breeds.
 

I suppose household guardian would be a fitting description.

Dobie and german shepherd, no doubt! My RR seems to be a good guardian as well, although i wouldn't think typically considered a "guard breed"

I also like cane corsos and presas!

I've always been very impressed with the way a chow guards; very quietly so the "intruder" doesn't even know they are there until it's too late.  And, they position themselves perfectly in the room to guard, be it in front of the doorway or at your side.  In our ranch home, Willow has found the perfect spot in the hallway where she can see in almost all the rooms at once,

What lives in my house;  Belgians, especially malinois.  There is nothing quite so intimidating as a dog leaping eye level, with noise and full dentition, who immediately stops and stares when owner appears.  This is after 26+ years in dobes, the primary difference, Belgians are so much more biddible than the typical guardian breeds.  I like the speed of light reactivity and the intensity.  Somebody with intent is likely to just go some where else.

RidgebackGermansShep

I also like cane corsos and presas!

Gotta agree with that!! I would love to have one of these breeds if I ever got out of the sporting dogs.

Border Collies they're not a 'guard breed' but they are great dogs, my Tucker only barked when people came into our yard - especially at night. Other then that Pit's, Akita's, and other larger dog's.

Other then that Pit's, Akita's, and other larger dog's.

Pits aren't a guarding breed. 

Gotta go with Corsos here. I've always thought they were awesome dogs, and I'd love to have one someday.  American Bulldogs are probably second on that list.

If Frankie was a breed then he would be the best, however. He is my tuff little terrier who is only 50lbs but isnt afraid of anything or anyone.

Cane Corsos. Hands down.

We had one surrendered to the shelter who was the SWEETEST dog in the world. She was horribly bred, needed all kinds of hip surgery, medications, etc. - but she was an amazing girl. Beautiful, gentle, calm, loving, but very impressive looking.

I really, really like the dogue de bordeaux. I walk one a couple time every week and he's the BEST!

 Bullmastiff. I love bull breeds in general and thes eguys are serious about their work.

Ratsicles

Pits aren't a guarding breed. 

They may not be, but they're dang good at it.