I like CodeCompare for it’s advanced comparison features, which helps me compare even changes in code when methods are moved across the file.
To make CodeCompare default diff tool in Visual Studio go to Options > Source Control > Subversion User Tools and put the following text into the External Diff Tool area:
“C:Program FilesDevartCodeCompareCodeCompare.exe” /T1:”$(BaseName)” /T2:”$(MineName)” “$(Base)” “$(Mine)”
Note that location of CodeCompare may differ according to the type of the system.