Google is evil in that they spy on users, and that they censor their services, and politically cook their search results. Microsoft’s Bing has not yet been detected cooking their search results
Microsoft reports to law enforcement to what extent they spy on users, the report was leaked, and the interesting fact is that they log less than anyone else. They only log the last ten logins, and when you delete emails from a hotmail account, they really are deleted from Microsoft’s servers – unlike Google mail on Google servers.