the MBTI is generally considered as the best of all personality
tests. used by PSC and many private organisations, many consider it
an accurate gauge of a person's character profile.
however, like all personality tests, if you really know yourself
well, you can more or less gauge which "kind" of person u are. for
me, i read up all the types and felt that ESFJ was most like me. a
few mths later, i sat for MBTI in J2 and after getting my results,
found that i was indeed a ESFJ, though i was so close that just 1-2
qns would put me to I and T.
so, how gd is MBTI? personally, i rather like the DISC test. though
i must admit that MBTI is gd. it's not perfect, but still one of
the best there is.
so, are human beings typed or unique? personally, i feel that while
everyone is unique in his/her own way, due to human culture and
biological reasons, it is very easy to "categorise" people.
Moreover, upon knowing a person's mentality and mindset, it is very
easy to predict what a person would do in a given situation and
thus what the person's strengths and weaknesses would be.
This is the main strength and usage of MBTI. eg, when faced with a
decision involving the fate of a person, a T person would tend to
look at the situation more objectively while a F perons would tend
to play more to the human touch.