On April 23, 2010, I polled TechRepublic members on this question:

Despite the amount of Microsoft and Windows bashing we saw in the Discussion Forum associated with this poll question, over 50% of the more than 4,000 respondents would use Windows 7 for their operating system. More surprisingly, at least if you judge by the grossing in the forums, is that Windows XP is the distant third choice behind Linux.

One anecdotal conclusion we can draw from the discussion forum following this poll is that many of the respondents would likely use a dual-booting system. It would seem that IT professionals don’t like to be boxed in to only one operating system.