Even though Fries himself as development of Kant seems to be lacking, still the later development of Leonard Nelson seems a lot better as Kelley Ross makes note of. Still the issues between Fries, Hegel and Prichard seem to be based on the results of their systems in the political sphere. But if we would be looking at political structures , it does  not seem that any of them were right but rather the approach f John Locke. So these must be two different areas of value Plato , Fries and Hegel were very great thinkers in philosophy, but not politics..