I done a very quick test on my characters head to see how this method would work. It was the easiest thing you can pretty much do. Get a sphere and just move some of the vertex to shape the cheeks and chin.
This was mainly done for show, so that i could see how things were coming together. From here i can start to model the face. I have a few worries at this time, and may have to do back to the drawing board with the characters face.
Again this was just a quick test to see how everything was coming together. This is not really the right in going about modeling a neck. Once i start facial modeling, i shall modeling the neck with her head so that they are molded together.