Windows Phone converts, one at a time. This time it's Dilbert creator Scott Adams:
Windows Phone Challenge Results
The Windows phone has the best user interface experience, although the onscreen keyboard is problematic just as it is with the other phones I used. The Windows interface is intuitive, simple, and has a liveliness that I find appealing. Voice call quality was good, and battery life seemed good too. I declare it the winner compared to my iPhone 3GS with AT&T and my HTC EVO 3D with Android on the Sprint network.
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If you want a smartphone that is easy to use, performs well, has a good battery life, and doesn't frustrate you, the Windows phone is the best choice of the three options I tested. All you give up is some hipster credibility and access to lesser-used apps.