I've been a longtime Android user, but Windows Phone is slowly winning me over. Why? Because Windows 10 is what I'll be running on my computer, and having the same apps on my phone as on my computer seems really neat. The only thing holding me back is the obvious. No apps. No bank app, no TextSecure, no RedPhone, no nothing. Hopefully that will all change in a century or two...
Oh yeah, iOS? Don't like it.