Innovation?
Automatic Folders? Google Apps has included priority inbox that works according to Google's algorithms as well as giving you the ability to create and segregation using filters
Mobility? Google Apps already offers native integration across all mobility platforms with a user experience consistent with the device and the option of "Apps" that provide an experience more similar to desktops.
Privacy? While Google scans some content for ad placement in Gmail and the free version of Google Apps, this is not the case in the business versions. Additionally, Microsoft has not said it will not be scanning [i[any content, just that it will not be scanning certain types of content.
Social Integration? Google integrates with Google+ and you can use tools to pick and choose how you integrate with social networks
Here is what you can't do with Outlook.com: You cannot open an email, reply by secure instant message, and initiate a free voice call or video chat.
