As we have all conveyed, there are a variety of mapping software of different skillsets available. Unfortunately (and usually) it takes several differing ones to get the desired end product to use in RW. It is just a shortcoming of RW by design.
A lot just depends on your application of maps at your table.. if VTT (virtual Table Top) then one type of map (and program) may be better, if you use a "battle mat" printed approach, then certainly another may be better suited. And lastly there are some that would do neither and resort to either handout or hand draw approach.
HOWEVER, RW was never intended to be a cartography tool in the form of "creating the map". The intent was to just "reveal" what is known about what ever map you chose to utilize and tie to the RW program.
And this is in no way a negative critique of RW approach to that.
Lastly, after conferring with another of my peers (Anna Myers), what my goal is to somehow incorporate Zoomify (
http://www.zoomify.com/express.htm) into our Realm Works giving the players an almost "google-esk" experience in map reviewing... but that too, is down the road.
my 2cp
DLG
See here for her version of Zoomify for an example.
http://ghmaps.net/onlinemap/onlinemap.html