What "fundamentalist" beliefs are most commonly rejected by "moderate" Christians?

On this site there is plenty of information about what the "official" doctrines of various denominations are, but I doubt that the majority of Christians follow all of these to the letter. Have there been any studies done to identify beliefs taught by a denomination, but which are widely ignored or not given much weight by its members? An example would be self-identifying Catholics who use contraception. To avoid the "no true scotsman" fallacy, consider a member of a denomination to be anyone who identifies themselves as such. I'm mostly interested in protestant views, but interesting examples from other groups are also welcome.