According Kiersey author of "Please understand Me I and II" the formula for an ideal match is ignore the first letter, the second must match, important since S or N largely determines how you view the world, and flip the last two. This comes out to for INTP E\I(NFJ). I've found this largely to be true. I tested a lot of my friends and found they either married or were at least attracted to their theoretical match. I did find this out however in some cases the theoretical match works best in one direction. Meaning the male is always this personality and the female is always the other. With ENTP, INTP and INFJ. I think the best match is female ENTP male INFJ and male INTP and female INFJ. I know from personal experience female INFJ's are attracted to male INTP's however it doesn't quite work as well the other way around. Are male INFJ especially attracted to female ENTP's?