I'd say that the "favorite software" used by members here are varied at best, but most often not a dedicated mapping application. In most cases they are the favorites in raster and vector apps like: GIMP, Photoshop for raster and Inkscape or Illustrator for vector. There is a strong core of ProFantasy users here and I'd say Dundjinni and proggies like Dungeon Crafter have the least support here.

There are individuals great with any one of these apps, but not really one program stands out, aside from the GIMP, perhaps.

Try the free ones or trial versions of other favorites and see if its your type of app. Different methods of operations may prove better for your work style, so you need to experiment.

GP