Well, Jesus did clarify how to identify "Christians". The name sure is generic and hardly makes a case for any single organization to be identified as the true organization. But yet again, I personally don't think that such a thing was in the mind of God or Jesus. The bible clearly states that you would recognize this men (not organization) by their fruit and by their love among one another. Never, I believe, does the bible mentions that they should behave and act as if they were their own sovereign country with legal systems and all. Yet, this is what the WTS is attempting to do and more so this days. Just review the new book (God's Kingdom rules) and you will see that. They lined up closer to the Jews of old Israel than they do to the first century Christians.
Just wish I had more time to write. Not saying my view is better or is the only one right. Just like Terry here, I am trying to put my thoughts together for someone to review.