The first one I read was "Angels and Demons", and then I couldn't wait for DVC to be published. I've enjoyed both novels EXTREMELY - what a read! I agree that Brown's style is maybe not the best in history, but I wouldn't say that everything is predictable (although it's true that I'd always figured out the main villain by the middle of each book). However, I found the books interesting, suspenseful and fast-paced and I'm looking forward to the next installment of the Robert Langdon series.
"Deception Point" was different, but I also liked it very much.
I agree with a few others here that "Digital Fortress" is his worst. But it was his first novel, and I suppose he hadn't found his true style by then.
Incidentally, "Digital Fortress" has only been published in Germany very recently. I can imagine that many people were disappointed to find the supposedly brand-new Dan Brown book to be so different from the others. But apparently, the German publishers only bought this book after they saw what a great success the other three were.
OK, so my conclusion is - great books
