Good post over at coding horror re: Sourcesafe
http://www.codinghorror.com/blog/archives/000660.html
Personally I like Subversion, but my current project is making the move to TFS... unfortunately from what I've seen so far (for the TFS features we're using) TFS is a large, more complicated, very expensive, weak version of Subversion.... Granted we're still early on in the process, but for simplicity and power it's hard to beat the Subversion/TortoiseSVN/CruiseControl.NET triple play....
-Andy