Server IP: PLAY.RUNIC-PARADISE.COM
I am only a member of this server and I think that the server is so wonderful that I decided to post it's IP on MCforums.
Runic staff are pretty much always online. This server uses many wonderful plugins such as faiths, mcmmo, slime fun, etc.
There is skyblock, creative, survival, mazes, mini games, etc.
Come check it out!