The one in my heart. From 1993 to 2005 I had the pleasure of knowing this one personaly and it was always a great experience being around him.
He was highly gifted and understood his surroundings very well to great surprice when you found out.
As an example sometimes at meal times which he would never miss he would be sitting patiently next to me or mom getting a bite here or there out of old habits. I would then sometimes say to him: well maybe if you begged you would be more succesful and then kind of moving his legs into position so he would be sitting that classic pose. The idea was he would do it naturally which did not seem to happen.
Some months later I am at visiting my parents and I grab something to eat in the fridge. Then I go into the living room and sit on a couch. Guess who comes around for a bite? So I said to him: You only get it if you beg! Which he did but not very well. You call that begging? Which he then did an effort and got it right. Right you win!
He always seem to understand when ever you talked to him on a different level than most dogs.