Often when the WTS uses the word "prophet" concerning themselves, you will notice that the word is surrounded by quotation marks, indicating not a seer, but a prophet in a quasi-sense. It is just like the Billy Graham is called a prophet (see amazon.com's "A Prophet With Honor : The Billy Graham Story" by William Martin)
and another Church leader, Klemp (see amazon.com's "Autobiography of a Modern Prophet"
by Harold Klemp). The American Heritage® Dictionary of the English Language uses the word *prophet* also as "A person gifted with profound moral insight and exceptional powers of expression" and "The chief spokesperson of a movement or cause." This is how the word prophet is used of these men in a quasi-sense, just like JW's use it.
Joseph Smith is one that "originates" prophecy, as he makes them up. JW's take TRUE Bible prophecy and chronology and apply them to our day, much like everyone else has done.
Let us take a look at the Christian New Testament view of False Prophets:
Matt 7:15: False Prophets (hereafter FP) are ravenous wolves.
Matt 24:24: FP perform miracles (See Good News Bible)
Acts 13:6: FP's are likened to "sorcerors."
2 Peter 2:1: FP's teach "untrue doctrines" TEV
This does not describe JW's at all, in fact, it sounds more like a charismatic revival.
JW's do not refer to themselves as prophets, and they do not make prophecies, they have speculated because the Bible encourages that.
They don't perform miracles or do sorcery.
They almost exclusively teach Biblical doctrines, not "untrue ones" like trinitarian xtianity.
If it looks like a duck, and walks like a duck, then it is nominal xtianity that are the real false prophets.