But those are just apps, not the OS and there are any number of replacement dialler, messaging and email apps for Android - are you suggesting that NONE of them are as good as the Windows Phone default apps?
It's a smartphone; communication is its entire raison d'être. Those things ought to be awesome right out of the box and, on Android, they're definitely not.
And you don't have to spend ages trying apps and giving random developers access to your phone in order to achieve this. And app-less WP is much nicer to use than an stock Android, which in turn is much nicer than all the vendor or carrier mutilated Androids.