"The Stand" by Stephen King, but make sure you get the extended version. As an XJW you will thoroughly enjoy this book on a level that no other reader could enjoy and that even Mr King could not have anticipated.
I had a really weird experience with that book. This was around 1980, and I caught some really bad flu that was going around and got really sick, I was so bad I had to crawl to the bathroom to throw up. It just so happened the book was laying around and I started reading it, I was too sick to watch tv, but for some reason I could read that. I really felt like I was living the book, not just the JW thing, but that I had the same symptoms as everyone in the story. I thought for sure I was going to die but I was too sick to care. It was surreal, one of the strangest things that has ever happened to me.