Make a faction server, with the old pvp etc. If you want hmu I got some good plugins and suggestions on how to make ur server. And I have a spawn ready :D
It depends if you want to get a large player base. If you do you will need to learn Java and create new and interesting plugins for the server that haven't been done before. People wont stay/join the server if you do something like factions as there are so many factions servers out there already