I'm a rare duck: I use Android, iOS and Windows Phone on a regular basis these days. All three have their advantages, but the iPhone 5 is my main phone. Here's why:
- Camera, camera, camera. I don't think a lot of Android users realize how bad many of their cameras are, even those that are supposed to be top-tier (see: One, GS4). The iPhone 5 (and certainly 5s) has virtually no settings, but it has a knack for getting just the right color accuracy, sharpness and focus. Yes, the Lumia 1020 I also use takes better photos in some circumstances, but it's 1. big and 2. does some things oddly (color balance, macros).
- App priority and quality. Android's catching up, but the rule of thumb remains that you have to use iOS to get the best apps as soon as they're available. Android has more flexibility, but you rarely see apps that are absolute platform sellers -- that is, they use an Android feature so well that it's an incentive to switch.
- Siri. Hey, don't laugh, it works very well for certain tasks. I much prefer the iOS approach to reminders and timers than Android's. Google Now is great for general voice searches, especially on a Moto X, but Siri seems to excel at task-driven commands.