Phew... So, now that I have officially given up on the contest entry, I have decided to do the Greyhawk thing after all
Things to do:
1. Make an (big) overland map
2. Think of where to place the adventure
I like Greyhawk because the Realms has a tendency to sound corny sometimes
(In terms of corniness, I would list Middle Earth, Greyhawk, and then the Realms in that order (least to most)
)
Also, Greyhawk leaves a lot more for the DM to decide - which means that I have a lot of freedom!
There are also the futuristic elements to play with as well (both in the Barrier Peaks and in the City of the Gods).