i've already played mach2, blitz, stronghold, wolf, lazytown and floodzone.
mach2 is pretty fast paced because its pretty small and symetrical, so you can always find the action.
blitz is pretty fun when the action is in the middle, but tends to really favor snipers & spies...
stronghold is cool(nice to have another ctf map besides 2fort) and it kinda plays similar to an old TFC map, which i can't remember the name of..
wolf is BIG! and like gravelpit, with a good attacking team its pretty easy to win. good action by the blue base though
lazytown is fun!! face-paced, pretty well balanced for every class and nice cp gameplay layout imo
floodzone is a good map for sniper wars...its very long and has great sniping spots...some stalemates on mid cap, but definitely can be won.
good find JD! it'd be fun to play some of these customs with villuns.
[EDIT] also, the direct link to the maps is
http://www.fpsbanana.com/maps/games/297