Yes there is. God didn't talk to Joseph Smith, that is a provably bogus story made up by a guy with delusions of something or other. That's like saying there's no difference between David Koresh or Jim Jones and Moses. The difference between David Koresh and Joseph Smith is that Joseph Smith convinced more people to accept his story.
That said, I am a big fan of Mormon values and their lifestyle. I never had a problem with voting for Mitt because he is a Mormon, not in 2008 and certainly not in 2012. I was apprehensive about him 4 years ago because I thought he would lose some of the evangelical vote, and in a tightly divided electorate, that could make the difference. I think the difference in the past 4 years among evangelicals is that they don't care about Mormonism when the alternative is a Muslim oriented marxist who hates America. It no longer was a big issue. Mitt sensed that as the campaign went on, and became more open about his faith, and I think it helped him when people saw how devout he was.
Now, the election is over. The anti-Christian doctrines of the mormon church are unchanged and God willing we won't see another mormon as a POTUS candidate no matter how "devout" he seems. His devotion is to his sect, not to Jesus Christ.
LOT's of NOOKIE; and them women FALL for it!!!