My main is on Lamia. I would be willing to change servers. Used to be on Leviathan, but i left to follow my one friend who never hangs out with me...lol. Leviathan definitely has lots of experienced players.
On Leviathan, i logged on one day FFXIV gil, and EVERYONE in my FC Disappeared...leaving me with a medium sized house, millions of gil and no FC members. Apparently, there was some big fight that i was not a part of. Very surprised that roughly 30 folks just up and left the FC. They all moved to other servers. They all put so much time and effort into buying their house. I could not believe that they all just up and left. It's probably still there....maybe i should go back, and try to build it up. The owner of the leviathan FC is in my Lamia FC. I believe he has an alt in Leviathan and checks in every so often...so it is just sitting there.
I tried to recruit, but everyone on Leviathan was just way too cool to join some random chick who wasn't even level 50 yet at the time. So, i left a perfectly good FC that i could have built up with friends, but it was a lot harder than i thought. I had 2 cool dudes join and try to help me FFXIV gils , but they eventually left to find an FC with people in it. I will try to look up some post or discussion regarding server info. Some server like mine which is cactuar has a nice balance of pve and crafting, atmosphere is pretty nice, mid to high population.
Then we have Gilgamesh which a very high population server but you will never run into problems finding people to clear contents. I will PM if I find anything tonight. Sorry about the FC drama that's crazy. I actually quit once because my FC moved onto other stuffs.... It might be easier to rebuild in servers that suit your playstyle more.