My suggestions are the following:

-Medieval Skycrapers
-Waterfall Caves
-Galactic Warfare
-SPACE ISLAND LEVEL WITH ISLANDS
-Superconductor
-Apocalyctic Afterworld

Uhm, and what I have to also add...People, be serious with your choices. I think there would be no idea to play in "miniDW". The name already shows that it's too small for this event. It would be a nightmare to play in "Just Got Carrot Away", for an example. No one would be able to score because the opponents would get the flag always before the another side scores. Also, there wouldn't be enough stuff to play, like ammo, carrot, etc.

And now you see my list. I don't mean to brag with this much, but lists like this are excellent. Any of them isn't very known one, or overused. And they're all by different authors. Well, I don't force you to make it for sure. Just use your opinion, but be careful with them, I mean.

EDIT: After posting this reply, I remembered that we haven't even registered to this event yet. I'll gotta get Gummi to let us to play in this. Then Urbs and some another active jj2-player in GpW, like Pyro if he just wants to do this.