i have now completed my facial rig using bones. i much prefered rigging with morph targets than bones as i found it easier to get the deformation i wanted. however i can see to plus sides of using bones as you can just move each bit as much or as little as you want, whereas with morphs you have to change the section of the part you are morphing.
i feel this rig was less successful than my morph rig as the deformations are not as smooth and it took much longer to make
i also implemented sliders for this rig
animation and simulation 