I think the critics of Mormonism arguments come down to this---Mormons lie about what they believe--what we tell you they believe is really what they believe.
I think this is what Dr. Mouw was referring to when he said that he was in a room listening to Walter Martin and when a young LDS man stood up crying and said---what you say is not true, we believe that we are saved by grace and WM replied, "see how they teach them to lie?"
*sigh*