I'm a Dan Brown fan. I've read all his books and my personal favorite is Angels and Demons. I love the larger than life climax!!!
Wouldn't say I'm a fan, but I loved the crap out of the Da Vinci Code, both the book and the movie. A&D was cool because of CERN and the antimatter, but overall I don't remember much about it.
I'm actually rereading "Angels and Demons" currently. I've got all of them except "Deception Point" and "Inferno".
I liked Da Vinci Code, Angels and Demons and Digital Fortress. I didn't like Inferno however. It felt confusing and therefore boring to me.