My absolute favorite is the Aussie, which I have been raising for about 16 years now. I am down to one now, but she is the perfect one (Evie). I also adore Border collies. I actually have two pit bulls ( a male-Waylon and a female- Lacey) and a rottie( Butch) right now. My fiance loves those breeds, so I got him the female pit bull after we moved to our farm. I like the medium sized breeds, but would love to have another mini pin (Sally RIP 2009) That is the only small breed I like. I also like Scottich Terriers. Well, heck, I could go on and on- Bloodhounds, Bassets, Beagles Anything you would find working on a farm.