I'd vouch for this great server.
The only vanilla server in existance without stupid s**t like /tpa /kit /sethome or /claim, where you can do whatever you want as long as you don't cheat.
Where since the map never gets reset you see buildings and ruins of buildings wherever you go, without the terrain being razed to the bedrock, and where whatever you build is - to a greater or lesser extent - permanent, and would certainly never be lost to a stupid map reset.
Where the community isn't a bunch of 3 year olds hitting each other with stone swords while spamming insults, but mature, experienced, sharp, and with a healthy sense of humour.
Though I myself don't play on the server nowadays cause I cheated and got banned, but I still regard it as the best MC server I've played on.