Attack the OS, not the user - 'play the ball, not the man' sounds better
Anyone here who has made an informed decision on mobile OS, is happy with price point, and has it meet their subjective needs - well done. And anyone who has issues with their choice - those are your issues with the OS, not theirs. There is no "wrong" choice, just levels of suitability for different users.
Each category can be easily attacked - iOS for the foolishness of paying a very hefty premium for a lifestyle accessory that is luckily also a smart phone, Android for the worrying number of users running old and extremely insecure versions coupled with wild variation in updates from OEMs, or Windows Phone for the scarcity of the app store/continuum apps coupled with general doubt about longevity given the low adoption rates. I sometime sorry that online commentary on mobile OS choice veers away from level technical assessment into religious fervour...