On Nagrand Alliance, there's a lot of drama since 2 of ex-Aman'Thul guilds went over. But horde side dunno.

Dath'Remar is another PVE Oceanic server but seems pretty quiet on the horde side. I have an alt there but low level 33 hunter. But recently in the past few days, there's been queues to get in. It's usually about 180-200 people, which is even more than Aman'Thul. Probably a lot of people transferring for server firsts etc.