I'm not particularly inclined to any of the servers I've tried out so far, as usually everyone is too spread out and at least one of them has Kill on Sight, which ruins the fun for me.
I want a proper cooperative experience, where people actively work together and see each other more than once every ten hours. Build, battle, trade and transport, do some actual proper teamwork together. To me, Avorion feels like a better PvE game, than a PvP game, it always has.