As succinctly as I am able: in your MBTI type, which letter do you value the most? Which aspect of your personality do you cherish over all others?
I, an INTP, consider N to be my most prized letter. The ability to live in my mind and put reality on hold is liberating.
I realize that for different types each letter would mean something different in terms of the Jungian functions; however, for the purposes of this little inquest of mine I would like you to consider simply the letter-based personality traits insofar as they apply to you.