The CIO of the Harvard Medical School and CareGroup,
John Halamka, got tired of Windows security updates interrupting his business so he spent a month working on each OS (OS X, Red Hat's Fedora Core Linux and Windows XP) and published his findings in
CIO magazine.
It's an interesting read, especially for those who prefer Macs but are forced to use Windows at work.
As an OS he gives OS X full credit for it's usabilty and reliablility and has now chosen a Mac for his home computing needs. He has also opened up the computer purchasing policies to include Macs.
Halamka says testing alternatives to XP has been a valuable exercise because it made him realize that the Mac can be a viable computing platform for enterprise users.
His dislikes were not actually for OS X itself but included Entourage's synchronisation with MS Exchange (storing all his 3Gb of email to the hard drive took a day). Some IE-centric websites in the medical industry not working with Safari because they use Active X. He found getting XP to work in Bootcamp "finiky". And "
some of the functions one takes for granted on PCs, such as printing screen shots and right clicking, aren't obvious on Macs"
Not OS related but worth noting is his concerns for the weight of the MacBook and the heat it generated.
His closing comments were: "If Apple comes up with a 2- or 2.5-pound 12-inch-screen laptop that runs cool, has better integration with Exchange, and if Vista turns out to be the beast it could be, then I probably will move to a Mac."