I was a Mormon for a while. I got baptized and everything. I know that sounds crazy, but for me it was a combination of nostalgia and a truly progressive belief system.
Nostalgia because, superficially, Mormons are a lot like JWs (it's almost like JW lite): men wear suits, ladies wear dresses, we go door-to-door and every male gets to be an elder. Also, the idea that God wanted Adam and Eve to eat the forbidden fruit so they could become deities like him is not only awesome, but makes a lot more sense than the JW idea of an omniscient being nonetheless testing his creations so they can fail and he can gloat.
If the archeological evidence for the BoM wasn't so conspicuously absent, I probably would have continued to give Joseph Smith the benefit of a doubt and been a sort of layed back liberal mormon who drank tea and winked at polygamy. Too bad...