I know this is like asking what the best motor oil is, but... my sister has had two American Cockers and is looking for another dog. She was initially looking at an Aussie, but has come to the conclusion (misguided in my opinion as we have two) that they are too high strung, require too much exercise, etc. Both of her Cockers haven’t lived past ten and both have been so ‘bird focused’ that I don’t think they have been the best pet for her. I will support whatever breed she wants but I would like to suggest some smaller breed dogs that are intelligent without too many breeding issues, etc. I suggested a Papillon to her. Any other suggestions? Thanks.