If you're moving the project from C::B to VS, just note down the settings from the Code::Blocks projects and create an equivalent solution in Visual Studio. Depending on your familiarity with, and ease of reading them, you may find it faster to open your .cbp files in Visual Studios text editor rather then running both IDEs side by side. Like .vcproj files, .cbp are just XML files, and are fairly straight forward to read/edit. The biggest issue you'll have to worry about, is if you're transitioning from GCC to Visual C++ for the compiler as well - option flags in one tool suite, do not always line up with the other.
In my personal experience, CMake is very overrated, but can be handy if you wish to support multiple IDEs.