Sigma Top 10 Alliance Map. This is done base done on Points. This is my first map in a long long time, so excuse the colours if they seem too close together.
Yes it should show every city.That mapping site colors the whole island if an alliance has one city on it.
It does the coloring in the order that the alliances were chosen by the map-maker. So its an advantage to be colored in last, as any shared island is shown in the colour of the last chosen alliance on the island.