Meg the Border Collie is just over a year now. A great companion but quite demanding on the exercise and attention (which was why we chose the breed.)Incidentally she is most of the reason we have just bought a motorhome so she doesn't have to go into kennels so we can go on holiday.
Our previous dog was an Old English Sheepdog rescued through the RSPCA. An amazing character, very affectionate and loyal despite what she had been through.
I think any dog is mostly what you make it - nature 10% vs nurture 90%