|Most mobile development studios out there will tell you Android looks to be the winner. If you ask them why, they might tell you because Microsoft has been a also-ran since they got into this market (back in 1996), Blackberry is too focused on the business IT market, and Apple is too . . . hostile. Take that as you will.|
Which one will look better on my resume?
Depends on the phone you have. The interviewers will probably want to see proof of your mastery, so you'll want to whip out your phone and show them in the interview.
Each phone also uses a different programming language. This might influence your decision.
Windows Phone: C# (or VB.NET, presumably)
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