iPhone 4S or Windows Phone Mango in a Samsung Focus S?

[Rick]

I am tired of Android lack of responsiveness and lack of consistency. My wife's 3G iPhone is twice as fast and years light smoother. So I was convinced to get now a IP4S until I borrow my friends Samsung Focus S with Windows Mango. In an hour I got in love, it beats iPhone in smoothness and response, and the integration between apps for social, pictures, and business outlook is all innovation, leaving Apple back in the past. My friend says his WP never crashed , that I cannot say from the iPhone, less from the Android pos. Also this Focus S hardware is really beautiful, much lighter and thinner than iPhone with a 4.3 inch screen using oLED tech that looks like digital ink on a real black paper. What I don't understand, is how with this quality, is not Windows Phone much more popular by now, especially when comparing to Android. I know that the number of apps available still is like a quarter or less than the others, but this is changing day by day and all important apps are there. Am I missing something? Any experiences with WP?