I considered choosing tovokas, but the additions he added to the original map (lakes, new rivers, etc) caused me to pass it by.
I nearly chose Rick Hershey, but the lettering seemed too wide, not readily read at a glance.
I considered choosing PBartender, but the use of numbers and the speckled sea turned me off it.
Finally, I settled on HALL - a true work of (computer) art.
As an honorable mention, I make note of Kensanata's map - a work of art (by hand this time).
[edit] I didn't even realize that Sean's map was in the running until after I voted. The mouse-over brings up the phrase 'original color map by '. That caused me to think of it like the b/w map - ie: it was the example the other maps strove to follow. Otherwise, I likely would have considered voting for it. I think its low vote turnout is likely due to this thought occurring to others as well, not a reflection of the map's level of skill or likeability.