I got David Keirsey's Please Understand Me II for Christmas, so I've been thinking a lot about personality type. Most philosophers I know tend to be ENTP or INTP, with some INTJ or ENTJ. Almost all of the philosophers whose type I know or can guess easily fall into those four types. I, on the other hand, am ISTJ, so I'm been wondering how personality type affects the interests and work of philosophers. For instance, I'm pretty sure William Alston is also ISTJ, and his work is pretty distinctive. Rather than coming up with a whole philosophical perspective, he tends to survey and evaluate the work already out there, developing things in smaller ways than the systematic work of a David Lewis. I tend to be better at drawing distinctions and working out the possible views than I am at developing a position of my own. I'm certainly much better at criticizing arguments than I am at offering any new ones.
Philosophers reading this who know (or are pretty sure of) the personality type of influential philosophers or philosophers I know, then I'd be interested in knowing what it is. If you have any insights into how this affects philosophers' interests of work, I'd also appreciate your thoughts.