i just happened upon this site which grades to the flags of the world.
i actually disagree with at least 1/2 of the grades (my favorite flag was given a "C"!!!) and, i like many of the "failing" flags better than the "A" group. i mean, come on, how can you can honestly say that chile (an "A" grade) is more asthetically pleasing than, say, iran or kazakstan (both got failing grades). but for what it's worth, go check it out.