This could take a while... lol
. If I had to choose though, my top 3 would probably be Deathly Hallows, Mockingjay, and The Book Thief. I also love His Dark Materials, Chaos Walking, The Maze Runner, Percy Jackson, The Last Decendants, Eragon, The Hobbit, etc.
I was reading through the rest of the posts, and I'm going to have to disagree with some people (Sorry!) but I did not like Twilight AT ALL. I just thought they were really boring (and I did read them all). Not to mention that there are so many books that are way better and deserve the success way more. I know I'm definatly in a minority on this though :( lol
But I definatly do agree with the person who said eReaders are the best invention ever! I have a Kobo and I LOVE it :D