If by "comprehensive," you mean obnoxiously long, then you're spot on.
It takes less than five minutes and conveys the nuances of political typology much more clearly than the obnoxiously simplistic diamond in this thread. Really it was a response to Stardust -
That diamond is old, we need a new political spectrum for the new age. Don't get what I'm hinting at? Think of Zeitgeist/Anarchy/Pirate Party/etc (and no, they can't be truly included in that diamond).