@kevin thomas,
Are we talking exploratory surgery here? Or just personality traits?
The exploratory would confirm if he had good organs, etc. You would have to ask a woman about the importance of that, although the undercarriage condition may play a factor, if future offspring are being considered.
As far as personality traits are concerned, then a tendency to be kind to animals would be good, and not having any cannibalistic tendencies would help, I suppose.
A sense of humour would rate highly as well.