Here is a set of videos with Dr. Walter Block where he tries to explain how certain parties can be called "Right Wing" and still express every trait of the Left. While it is a great primer for what is wrong with the way the media and academia describe the political spectrum, he leaves to the viewer any sort of workable framework.
Over the years, I have grown a renewed interest in the straight line graphic. Working on a version now.
Here is the first draft of the graph, nothing special yet: