this looks like an interesting thread to read, and maybe i will when i get the time. but for now i will just respond to this idea:
Mormons and JWs both believe in Jesus being the messiah/messenger of God/incarnate deity/whatever. That makes them Christians
mormons and jw's are not christian, they are cultists. they do not believe in the same Jesus as true christians do. for mormons they believe satan is his brother, when the bible is clear that he was an angel.
the jw's retranslate the bible to fit their beliefs and not the truth. they also do not accept Jesus as God or the son of (see the book Index of Watchtower Errors by David a. Reed editor.