Sorry mate but yes you do have a classic situation here and that
is not so much about the girls themselves but its YOU.
You do not know what you want. Even if you did know, you are not
convinced enough to live out your belief!
Know your own personality first. Know who you are, what you need
and what you admire in a person. when you know yourself, you will
be surprised that your view of A & B may change!
So the short answer is know yourself first. once you know who you
are it becomes so much easer to identify the type of girl that you
will like and can love a life time. Only then do you give all you
have to run after that girl whom you have identified!
If not, you will end up wasting time and cause pain to you and both
A & B!!!
so its not worth it!