I think the Gate World is sort of the in-between world. It's like the glue that holds all of the worlds together, and the barrier that holds them apart. And like Rachael said, its most like the Woods Between the Worlds.
Come on guys, (guys as in anyone who enjoys this comic) go to the forums. There are so many conversations that we could have but won't because there are a total of 3 people who post there. I know you guys might have checked them out and have thought that they didn't have enough people to be interesting, but if you don't come, that won't change anytime soon. Go to the forums. Just friggin do it.