the great thing about this book to me was not the writing in itself, although the short chapters and "not giving too much info too soon" really build up the suspense and add to the effect...but the beauty of it was the story! the secret societies, the anagrams, the puzzles, the thoeries about religion - just brilliant!
i also read angels and demons, and yes, it is very much in the same line with the dvc, again about religion, again anagrams and secret societies...but the story is just as gripping and interesting.