iOS Likes
-Uniform makes coding really easy and thus produces a ton of higher quality apps with the same look and feel.
-Feels very zippy
-App selection is great for games and pretty much everything else. See point 1 for why
-Everything is integrated in the ecosystem
iOS Dislikes
-Notifications are not as good as Android. I didn't realize how annoying it was that I couldn't clear a notification by swiping away.
-Home screen is the same as 4 years go when the iPhone launched plus the wallpaper change in iOS4. Needs something different as a splash page to feel a bit fresher.
-System Level toggles are not available. For example, to turn Bluetooth or Wi-Fi on, you've got to dig through menus. On android, it's push the toggle widget which is fantastic.
iPhone Likes
-Looks sleek as hell. I still like the design even though most people find it stale
-Feels like a premium product
iPhone Dislikes
-Screensize is far too small. As I previously stated many times before, 4" is the sweet spot between mobility and size (which is probably why the new iPhone is set to be this size.)
-Actual Back button. When in just iOS, you don't realize how much you miss the back button until you don't have one. I was fine without one when I had my iPhone. Went to Android and Windows Phone and got really into using my new iPad and sometimes i just wish i had the back button.