If you really want to know the problems with LDS Church doctrine, the problems are easily accessible--in the church's own publications, in fact. The web site http://www.mormonthink.com gives you a good idea of why FAIR apologists stay so busy trying to defend the church. You can also view this excellent summary of problems with LDS teachings on YouTube: http://www.youtube.com/watch?v=4ac_fLUHiBw