It's totally a matter of personal taste. Some people use a blend of 3 parts whole wheat and 1 part regular flour for the texture and so it's not so heavy or you can jump right into the 100% whole wheat flour. If you are looking for the goodness of whole grain try brown rice flour pasta too, if you can find the flour locally. It's much closer to white pasta.

Flour, eggs, water and salt, with a bit more moisture then you would use for white flour.