Good luck to the OP !
I've also been an avid user of both iOS and Android. iOS doesn't give you the choices and flexibility that Android does, which is the simplicity that some people want. iOS doesn't do as much as Android, but it's stable and consistent, which is a perk. As an example, every iOS mucic app that streams over Bluetooth displays track/artist meta data on my car's head unit. On Android, only certain music apps provide that meta data and not every phone's Bluetooth stack transmits that data. As a corollary, on Android I can share a photo with any application that has a hook into that service while I'm much more limited on iOS. Likewise, if I don't like the keyboard that comes with whatever Android phone I have, I can get any number of qulity keyboards and specify it as my default keyboard. With iOS your stuck with the stock apps that come with the device. You can just pick up an iOS device and hit the ground running without having to tweak anything....as long as you are willing to accept that fact that Apple knows what's best for you
Personally, I prefer the flexibility that Android allows for over the simplicity of iOS. I also love how Google is separating core functionality out so it can be updated without requiring an OS update (the more recent GMail overhaul is a perfect example of the benefits of that) and I'm looking forward to see developers take advantage of the new services that Google announced at IO this year
If there would be anything that would being me back to iOS it would be it's stability; on Android, that varies from phone to phone. I had the S4 and that was extremely unstable with my setup (lots of WiFi disconnects and Bluetooth streaming audio issues with my car) I replaced it with the HTC One and those issues went away. I'll be the first to admit that WiFi and Bluetooth are highly dependent upon the router and car you have. The S4 may have worked flawlessly with a different setup, but I'm not going to swap out my router and car for a phone. Had I been new to Android, I would have been much more likely to replace the S4 with an IP5 because those type of things tend to just work with iOS.
Also, Google is doing a fantastic job of putting their applications on iOS. Maps, Gmail, YouTube, Hangouts, Google+, Google Now all work very well on iOS devices, so you don't lose as switching to iOS as you would have even a year ago
I've also been an avid user of both iOS and Android. iOS doesn't give you the choices and flexibility that Android does, which is the simplicity that some people want. iOS doesn't do as much as Android, but it's stable and consistent, which is a perk. As an example, every iOS mucic app that streams over Bluetooth displays track/artist meta data on my car's head unit. On Android, only certain music apps provide that meta data and not every phone's Bluetooth stack transmits that data. As a corollary, on Android I can share a photo with any application that has a hook into that service while I'm much more limited on iOS. Likewise, if I don't like the keyboard that comes with whatever Android phone I have, I can get any number of qulity keyboards and specify it as my default keyboard. With iOS your stuck with the stock apps that come with the device. You can just pick up an iOS device and hit the ground running without having to tweak anything....as long as you are willing to accept that fact that Apple knows what's best for you

Personally, I prefer the flexibility that Android allows for over the simplicity of iOS. I also love how Google is separating core functionality out so it can be updated without requiring an OS update (the more recent GMail overhaul is a perfect example of the benefits of that) and I'm looking forward to see developers take advantage of the new services that Google announced at IO this year
If there would be anything that would being me back to iOS it would be it's stability; on Android, that varies from phone to phone. I had the S4 and that was extremely unstable with my setup (lots of WiFi disconnects and Bluetooth streaming audio issues with my car) I replaced it with the HTC One and those issues went away. I'll be the first to admit that WiFi and Bluetooth are highly dependent upon the router and car you have. The S4 may have worked flawlessly with a different setup, but I'm not going to swap out my router and car for a phone. Had I been new to Android, I would have been much more likely to replace the S4 with an IP5 because those type of things tend to just work with iOS.
Also, Google is doing a fantastic job of putting their applications on iOS. Maps, Gmail, YouTube, Hangouts, Google+, Google Now all work very well on iOS devices, so you don't lose as switching to iOS as you would have even a year ago