Coming from Android, this is why I'm staying with the iPhone:
- Fluidity of user interface. Plain and simple. I don't need no customizable widgets that slow down my phone.
- The lag on android phones is really a dealbreaker for me. The struggle is real lol. That extra second to open an app really makes a big difference to me.
- Camera. "The higher the megapixel, the better it is" is a MYTH. I don't need my phone camera to be 21mp, but the sensor is low. You guys should have taken notice at most Samsung phones with higher megapixels, but the quality is just so-so. The 5s' camera is already doing a great job for me for casual photo taking. I don't need to print my pictures in large scale canvas/paper, it's just for social media. If I'm going to need a better camera, then I have my Canon for that.
- Wider selection in the appstore. This is the main reason why I actually switched to iOS. I found myself wanting to download an app but it's not available in the Google Play Store.
- Overall simplicity. I'm not a tech geek, I don't particularly see the need to root/jailbreak my phone. As long as it does the job (call/sms, internet) then I'm fine with it.
What I just don't like with the iPhone is that it always doesn't live up to my battery expectations. Other than that, I'm all good.
So let's enjoy this phone and let's not start fanwars.

It really is up to personal preference. No need for judgment. Cheers!
Nobody is starting fanwars lol... I'm an iphone user myself and I'm in a bit of dilemma of continuing with iphone since I've never used android, but hearing from you, I feel much convinced now. Thanks!