LegioChristi is a Christian run Anarchy server where hacked clients are allowed. There's a decent player base that keeps growing, plus a for the regulars. If you and your friends want to settle down, there's plenty of open land away from spawn to claim for yourselves.
This is still anarchy, though. You can grief, raid, and fight other players, and the server keeps the rules loose beyond a small protected login area. Your first join uses /register password password, then /login password after that. While you are logged in, your inventory is protected and you are invulnerable for a short time, which helps stop coordinate exploits and spawn camping.
You are allowed up to 3 accounts per IP, with 2 simultaneous logins per IP. After your first death, you won't return to the same login area either, but will spawn at a random location within the spawn region. So once you're out in the world, it's basically complete anarchy from there.