I like all dogs, but I prefer the larger breeds. I currently have a black lab (best animal I have ever owned) bought off of a farm as a pup and also a lab/rott? mix pup. The mutt I got from the shelter. She is sweet, but is also the stupidest/clumsiest dog I have ever owned.
I had a wolf hybrid when I was in high school. She was, by far, the smartest animal I have ever owned which made her a handful. She also had strong pack hierarchy instincts. She saw my parents as the alphas of the family, and she saw me as a competitor for attention and dominance.
If I were to get a purebred (not likely due to price) I would probably go for a border collie.
_________________
Those who cannot tell what they desire or expect, still sigh and struggle with indefinite thoughts and vast wishes. - Emerson
Selfishness is not living as one wishes to live, it is asking others to live as one wishes to live. - Oscar Wilde