Have you ever tryed modeling useing the create polygon tool to draw the basic shape of the head from the side view. And then extude edges, and then convert to subdiv. And then in polygon mode extude and merge the edges starting with the eye area working your way to the nose, and then the mouth. When your done convert back to polygon.
This is how I model heads now, which I find to be the easise. But this is just one of the ways to model head, or even the body for that matter.
Just my two cents
