Robert Conley of Bat in the Attic is one of my favorite map creators. His work is concise and aggressively utilitarian, opting for function over form. It's firmly set in the cartographical tradition of Judges Guild. I like maps to be like my dice -- opaque and easy to read, divorced of all froo-froo elements but not lacking in style. So believe me when I say that I so loved Rob's Blackmarsh map that I was compelled to play around with it while brainstorming a new setting.