I also get immensely pissy about his supposed "facts". (For example, he contests that the Council of Nicea was deeply divided on the divinity of Christ. It was something like three hundred to two. Hardly deeply divided).

His novels left me cold, but I must confess the film version of Angels and Demons is a bit of a guilty pleasure. It's got parachuting pontiffs, so it gets points for sheer insanity.