#6 Tony Bates

Tony Bates is executive vice president of Microsoft’s Business Development and Evangelism group, responsible for the company's relationships with key OEMs, strategic innovation partners, independent software vendors and developers. He also leads Microsoft’s corporate strategy team. Before leading the Business Development and Evangelism group, Tony was the president of Microsoft’s Skype Division and the CEO of Skype prior to its acquisition in October of 2011.

#5 Vic Gundotra

Vivek Gundotra is the Senior Vice President, Engineering for Google and was previously the Senior Vice-President of Social Business for the same company.

Before joining Google, he was a general manager at Microsoft. He joined Microsoft in 1991 and eventually became General Manager of Platform Evangelism. His duties included promoting Microsoft's APIs and platforms to independent developers and helping to develop a strategy for Windows Live online services to compete with Google's web-based software applications. The former Microsoft executive could be tempted to return.

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