I have to say the one I have ,Koko, since statistics say she will out live me. I will be 70 in March and if I live to the average for today, I have 4 years to go. My father died at 74 and his died at 73. Koko should have at least 9-10 years if she lives the average for either of of the Breeds that contribute to her Gene pool. She is what I would pick even if I was only 20.