iOS vs Android

My Samsung Galaxy S4 decided more than two months ago to take a different flight. At the same time SWMBO declared that she had enough from her iPhone 5 and demanded a bigger screen. So I took the opportunity and switched to an iPhone (for now). Here is my completely biased, partial and unscientific - but 100% accurate review for the most important use case for me: my Smartphone usage:
I'm not much of a photography buff, player or mobile music listener. I check and answer emails, social content, get around and track activities. My experiences are based on that.

Topic	iPhone	Galaxy S4
Battery live	Lasts half a day with my usage pattern. In cycle mode: 2h screen operation	Lasts half a day with my usage pattern. In cycle mode: 2h screen operation
Screen	After having used a large screen is feels oddly small. I got big hands, so it can be larger. At the edged the screen touch precision is bad (planned obsolence?) Barly readable in sun light	Crisp, readable in most conditions, responsive, big
Keyboard	The biggest let down on the iPhone. I can't customize it. The caps lock is only visible on the caps lock button. Emoticons don't show up in Whatsapp. To get to the # I have 3 taps (unless the app requested the # like in Twitter). Auto-correct doesn't do multiple languages and I have to move fingers into the entry screen if I disagree. You can't navigate in text - try in a long URL that scrolled away to get to the front and change http to https - good luck with that.	I use Swiftkey that learned my vocabulary and also allows swyping. An ideal tool for frequent peckers. Wins hands down.
Home screen	Square icons, no spaces between them, max 9 icons per folder page: a joke when you had a customized Android home screen before. The swipe from top or bottom depending on the function is confusing. More than once, when I wanted to swipe up a website, article in Flipboard or Economist I ended up opening the control center.	Customization to my taste: my key applications (including IBM Notes Traveler) are configured as widgets, so I don't open them to glance on them (would be interesting to compare that with Windows phone) and there is space between my logical app groups
Music & Camera	iTunes and iPhoto make it easy to manage all the stuff	Music is a headache, camera works for my level (a.k.a Knipser)
eMail	gMail works similar on both devices. Apple mail shows its age. I can't swipe left/right for new messages but have to aim for the little arrows. I need a companion app for encrypted stuff	the Notes mail application works nice with swipe and support for encryption - and I can keep it separate from private messages
Contacts	One word: primitive	Allows to combine contact information from different sources into a single profile. And I can access my different services directly: Whatsup, Skype calling etc.
Accessories	Works quite nice with my Mio Alpha and Fitbit. There is also a bloodpressure monitor.	Until Android 4.4 hits my phones making low power bluetooth available, the Mio Alpha won't work. Fitbit works.
Quantified self	There is one aspect on the iPhone about Endomondo, haven't made up my mind if I like it: when starting the screen locks with a slider and keeps on, so I see it all the time. On Android it times out and locks with the passcode. Nice to watch on iPhone but a hug battery drain	I use Fitbit, Endomondo and WiThings. They work equally well
Control center	More than once when browsing a website or flipping upwards in Flipboard I end up pulling up the control center, unless the keyboard is displayed, then I can't pull it up at all. I like the flashlight.	The control center is in the main pull down, with all settings I need and an easy to target pull area
Tasks switching	iOS lets me switch back to the menu (single press) or the task list (double press). There is no concept of an universal back button, so when switching from one app to another no back brings me back to the previous, it is there sometimes depending on the app	The back button lets you backtrack nicely
Sharing	Apple knows best, so the share menu is what they tell me. I'm missing the IBM destinations (Connections, Sametime, Notes), Dropbox, UbuntuOne, WhatsUp, Evernote etc. Any anyhow, how can Apple know best if SWMBO already does?	Any application can register with the OS the capabilities it has to share things. Items appear in the Share via menu and live is good
Applications	All that I want to use can be found in the iTunes store	All that I want to use can be found, mostly in Google Play (some on my corporate server)
Development	ObjectiveC and Mac required. While I have a Mac at home, my workhorse is a Ubuntu Thinkpad	Java and any platform. My ObjectiveC is worse than my Mandarin (ask SWMBO how bad it is)

I most likely won't stick with an iPhone, while others want to ditch their Android
YMMV