I'd hire the one with the biggest credentials, keep an eye on him and set him straight and in his place if he turns out to be bad news.
Granted, I have fairly small companies and have a very direct influence on my employers. Had I worked in a large company, I probably would have gone for the one I sensed would probably work out, because I wouldn't have any influence on things if my Ni turns out to be right.
So, all in all depends on the situation. Ni goes through a Ti check with me.