scoring is ok, but it lacks detailed explanation.
example, you have several clans listed well above fission and TBW that are not only not on the map, but have never had land. how can those clans be rated higher than a clan that owns land and has actually done serious clan wars? clans should not be rated by mire statistics alone. research into the top 100 clans should probably be necessary and a real decision as to their ranking should be made in order to make this more accurate.
while neither clan is top 10, both should easily fit in the top 30-40 range especially for owning and holding property.