In my 25 years or so in "Christendom" I've been to many different churches in different denominations and have heard hundreds, perhaps thousands, of sermons. In all that time I have never heard the term "immortal soul" used, not even once. Yet the JWs go on (and on, and on!) about the evil Christendom "Doctrine of the Immortal Soul". It seems to me that the only Christian sect that has such a doctrine are the Dubs themselves!
The Doctrine of "Hellfire" is another term that is supposed to be central to corrupt Christendom, yet again, I've only ever heard the Dubs use the word.
How many other doctrines are there that the JWs ascribe to Christendom that in reality are doctrines that only they hold, albeit in a negative sense?