Generally speaking, I prefer Android over iOS and one of the main reasons for me to do so is that it offers much more options and a much better value for money.

But I see one advantage that iOS has that you didn't mention. Since there are very few actual devices that run iOS and they are all made by Apple, the operating system and the hardware work very well together and it's all optimized so the two get get the best out of each other. On the other hand, Android is an operating system that has to run on hundreds or even thousands of different devices with all kinds of ships and components and because of that it can never be as efficient and as stable as iOS. So generally speaking an Android device will experience bug a bit more often than an iOS one.

Additionally some smartphone makers like Samsung seem to preinstall too much bloatware and their software updates start making the devices more sluggish with time.

Of course, I'm still squarely fall in the Android camp as I can choose devices that are the exact size and specs I want and the operating system is much more flexible and customizable which is something I tend to take advantage of. Also, not having a back button drives me crazy while using the iPad we have laying around here.