My guild moved to a new server and it's SO MUCH better! It seems like a completely different game now. It's strange to run around Sanctum and see people everywhere. The AH is now filled with gear, and I can now sell items on there which is a huge deal for me, as I need cash.
Best of all, I can now join random t1/t2 very quickly, and even warfronts must come from a different group of servers now because they are far easier to get in to.