What is the most populated server?

[MicahZerrshia]

Balmung is the highest pop NA server.

Gilgamesh and Sargantas are roughly equal.
(Based solely on when they let ppl into the server. Gilgamesh and Sargantas are equally available, though when 1 is available, the other is closed, and this swaps half way into each day. Balmung is always locked off every day, always.)

If you transfer I do not believe anything is locked, however Balmung is well known as an RP server so much that its become a running joke in the community, so if you are not into RP go to Gilga or come to Sarg.

I can tell you first hand sarg usually has things going on, PF while not massively overflowing is usually populated with various things to do.