I saw the peninsula to the SE in Two Crowns as well. It was empty except for 5-6 plots. That is a better area imo for a guild group to drop houses, it's bigger than the other area. There are crafter/vendors at the base of the peninsula.
It will be interesting to see how many people are at headstart and heading to Two Crowns. Someone mentioned plots would cycle in 90 days when people left the game so there might be a 2nd chance for picking the prime guild spot down the road if things don't go as planned. Good luck everyone. I will see you at launch with the nubs.