Where to pve

[Rickhaos]

Hey there, I just bought this game a couple of days ago and im loving it.
Even though I'm new to this game I like to think that I have some experience in the mmo genre especialy in pve (mostly played gw2 and raided in wildstar).
I'm playing in the European server "Lich" and the queue times are a bit long, (and yes I know that dps queues are longer than the tank's or healer's and that im enlisting in low level dungeons) so I did some research and found out that apparently "Lich" is a low populated server.
Finaly to the question(s)... Should I change to another Server, if yes which one would be the best for me? (note* I still didnt get heavensward expansion)
Oh and just a quick question, free companies are like guilds in another mmo's right?