Doug Rohm mentioned today on his preference of RefactorPro (DevExpress) vs Resharper (JetBrains). I've also used both but I found that I liked the Resharper functionality much better. One of my favorites is alt+insert to generate getters / setters and constructors, something I never found in RefactorPro. I totally feel his performance pains with Resharper, although I also had poor performance using Refactor. I do want to point out that much of my performance problems were alleviated thanks to this post http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=144370&SiteID=1 which another developer I work with found. I checked out some of the new features coming in Refactor 2.0 though and they do look very promising (especially the extensibility), guess I'll have to wait for it to come out and reevaluate.