I have gone the gammet with dogs, I like dogs, they have done wonderous things for me and also made alot of wrecks. I have had Blue Heelers, loved them in the brush, they are tough, some dog hating cow comes after them they will win. Border collies are too hyper for me sometimes, the neighbors have three that make it almost impossible to do anything, brand inspect, brand, work cows, they are out of control cause they need work. I have never had an aussie but have been around alot of them, the cross may be great dogs, a mixture of the good points with training. One of the best cow dogs I ever saw was, if you can believe this, a poodle. Lived and breathed with the owner and was as smart as they come. The best dog I ever had in the pasture was an English Shepherd/Blue Heeler, he had the heart of a heeler but more under control like the Shepherds. The Corgies so far are the most in the corral, they just can't cover the ground. I have a friend with a heeler/corgie, still can't cover the country but better than a straight heeler. WOOF