Which do you prefer, and why? I've been in contact with a shelter up in Canada that has a started BC (on sheep) available. I've also got someone down here with a very nice working line of aussie pups, and she's willing to trade for sheep. I've heard that the BCs are more intense workers, that they'll likely get the job done better than the aussies. Flip side is that they're often so intent on getting the job done that they forget how to be a family companion. I have to admit that a friends BC spends so much time herding everything that moves (including my truck when it comes down the driveway) that she's rather difficult to have a relationship with. Have any of you owned both breeds? What words of wisdom can you impart?