The Illyrian Empire is in at number one.
This is one of my personal favorites, and this update has some amazing images. [Link]
Also in four years ago today: World, Abbey-Upon-Tyne and Schulmania.
Ben's + 10
The Sultanate of Bangorai' by Sky Guy
Eastern Balboa by Retep Molinari
Halifax County by CTMandR
Corsica by Yan077
Vancouver, Natrual Growth by _marsh_
Pacifica by thepokemaniac
Dimland by mitsos
Nastreaux by hermannleicht
The Brookstone Region by CTMandR
Oahu region Mars250