I vote for a Custom rpg map with low rates, why get a high rated server? Its not fun at all, and teleports ? Why does people have those things? Make a map with great exploring, lots of quests, and make it hard for players to play.
I have an example of a server which is low rated and its fun to explore, could need a bit more work maybe but. Zorenia.servegame.com A good example of a custom rpg map.
Sorry for my bad english
PS: Dont make it to custom with casino's, mining and name other monsters and loot. Have it regular, but custom mapping