Since we've been down this road for ten years, I am curious to see what features you have felt were the best that Apple has implemented? Pick 3! I am Leaving out very early ones that would obviously be the most important such as the App Store, Copy/Paste, etc. I am also leaving out CPU and camera upgrades. Personally, I felt TouchID, FaceTime and the jump to a 4.7" Display have been my favorite. They are things I use every single day and all we're implemented to perfection.