Again what makes android then from a features stand point? Android still has more flexibility and features at this given time. If you can say ios improving enough by saying it adds features then what is android doing? Likewise what is touch wiz doing, which now has more features than stock Android?
The iPhone 5 runs as fast if not faster than the best Android phones despite the hardware not being as powerful, because the software and hardware are specifically made to work well together.
The iPhone 5 lasts as long as Android phones with batteries twice its' size because you don't have to worry about wakelocks.
Seems like some of the important parts of the core experience (battery life, smoothness) are done much better in iOS, but others are done better on Android (sharing, openness and customisation).
They're both good for different reasons.
I once had a wakelock in my Galaxy S3 where the "tilt to scroll" option in Google Chrome was causing a gyroscope wakelock and draining my battery quite severely. It's like, come on, give me a fricking clue! Luckily I was savvy enough to download betterbatterystats and google the culprit of that particular wakelock, but millions wouldn't be. How would you ever discover the cause of that if you don't know about apps like BBS?!
And that's just one example; other apps on Android have problems like that all the time. It's a minefield.
For me, as someone who enjoys tinkering with devices, wakelocks were a nuisance, but for many other less tech-savvy people it would be a deal breaker.
Being "totally open" has its' pitfalls.