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I don't use my phone like you do. I use my phone as a communication device with family; FaceTime, imessage, and to support my business. Rarely go on youtube, take a ton of pictures of which the 5s camera is highly rated and support my business.
IOS makes all of this very simple for me.
I agree Facetime/imessage is a good thing on ios. Unfortunately the walled garden of Apple virtually makes it useless to a lot of people. Maybe all your family/friends/business live in apple walled garden but in the real world there are many who don't. And apple being apple (always revengeful) give hell to those people who want to leave imessage.
5s camera does well in point and shoot. But from all the reviews I have read, it takes around the same picture quality as any other flagships. Downside of ios camera is just that it is just too basic in functions (i.e. you can't use it for any other purpose other than point and shoot).