I just wish it took more classes into consideration and tested actual cognitive patterns and matched them well with physical and emotional attributes. The big three for Personality typing, really. I don't mean testing the person to see if they are smart, but questions like:

If n assumes d does d assume n?
A) No Idea
B) Yes
C) How can I tell? - I am googling this
D) I am going to break your neck.
E) I cannot be arsed to care

Simple questions, simple logic
double answers, complex logic

simple psychoanalitics meets philosopy. Or you could test just for key traits, and that should give you an answer. I am internal, aware, intuitve, adaptable, positive, strategic, individualist, (and a few others) and that led me down the path to my Factotum, which really seems to suit my personality, thought process, and play style.