I vote for the Aussie/German Shepard mix or the Husky/Pitbull mix!! We have both and they are wonderful. Sox (the Aussie mix) is a bundle of energy 24/7 and is SO smart. She knows what a flashlight is, what it's used for, and how to turn it on. When we finally get moved to a bigger place we are going to start her on agility training. Tigger (the Husky mix) is our lover boy. He loves to cuddle and stays right by your side all the time, he's a little shy of other people but once he gets to know you he will be your best friend. Our 2 full breeds are great too though...it's pretty difficult to pick a favorite.