Tying for first with 5 stars each are The Emperor of All Maladies by Siddhartha Mukherjee and The Count of Monte Cristo by Alexandre Dumas. Both highly recommended must reads!
Following closely with 4.5 stars are 11/22/63 by Stephen King, How to Live: Or A Life of Montaigne in One Question and Twenty Attempts at an Answer… by Sarah Bakewell, State of Wonder by Anne Patchett, and Unbroken by Laura Hillenbrand. I really enjoyed reading all of these. Pick one up for a good read.
Wanna know more? You can read my full reviews on LibraryThing.