You're having heart bypass surgery. You have narrowed your choice of surgeons down to half a dozen. Five above average skills and are very reputable. Several are very likeable and you would enjoy visiting with them on a social basis.
One has magic hands, a noticible lower death rate among his patients. He also KNOWS he is the best! He is arrogant and egotistical, a regular SOB.
I know, all things being equal, you'd pick the surgeon with mediocre skills and invite him over to your house for dinner once you have recovered. Right?