Probably a mixed-heritage mutt with alsatian colours, collie size, a good immune system, a gentle temperament, no health problems and an IQ of at least 150 by dog standards.
Single breeds?
European Wolf [http://www.testriffic.com/resultfiles/175190-Wolf-001-wall-(1024x768).jpg] and Ethiopian Wolf [http://2.bp.blogspot.com/_--uX6KPhHpQ/TPp7XmCLEgI/AAAAAAAAAfQ/GEKrdjwlLq0/s1600/EW.2.jpg].
Not allowed wolves?
Alsatian [http://www.mediastorehouse.com/dog_german_shepherd_alsatian_drinking_from_stream/print/1453303.html] then probably Shetland Sheepdog [http://www.conferenceofbirds.net/wp-content/uploads/2011/03/Race-dog-and-Shetland-sheepdog.jpg] and Husky [http://www.dogbreedpicture.net/dog-image-s-610-siberian-husky-504-siberian-husky-aq.jpg-4396.htm]. Anyone who's been to the Shetlands at enough times of year will understand that fur coat.
If you're looking for huge and cuddly, check out the Berner Berghund, aka Bernese Mountain Dog. One site said some males grow to 130lb. This one [http://www.dogbreedinfo.com/bernesemountain.htm] only goes as far as:
Height: Dogs 24-28 inches (61-71cm.) Bitches 23-27 inches (58-69cm.)
Weight: Dogs 85-110 pounds (38-50kg.) Bitches 80-105 pounds (36-48kg.)
Don't expect to wrestle with one using only one finger, huh?
Readers with analytical minds may reasonably conclude that I prefer the breeds for which the question is how many it takes to drive away a bear, not how many a bear can eat in one hour.