I will recommend this book to anyone, and that's The Book Thief. An extremely powerful book, well written, full of meaning, especially for a book lover like me. The movie didn't do it justice, but the book is hands down one of the best books I have ever read. Top 5, easy.
If you're looking for something a little lighter, look no further than Simon R. Green's Nightside series. It's dark, gruesome, extremely imaginative, highly insightful, and best of all, tons of fun! I seriously don't know another author who can pack so much action, drama, and creativity into a single book. His books are a wild roller-coaster ride that leaves you both completely satisfied and wanting more when it's over.
Been reading Tales from the Nightside, a collection of short stories set in that world, and it's awesome. I have, of course, also read the rest of the series as well.