I love saying crazy things that I can support, and I thrive on the attention given to the iconoclast, so I find it impossible to answer this.

The only beliefs that I wouldn't feel comfortable saying here are beliefs that I want to be true, want to argue for, but I know would get shredded. This is one reason I try to hang out with smart, argumentative people - so that my concern about being shredded in an argument forces me to more carefully evaluate my beliefs. (With less intelligent people, I could say false things and still win arguments).