Alright, a few favourite RPs too because I said I would. Geras' Guilds of Atria, Z GMed by Jay and Shak, One Piece: Golden Age GMed by SV and Legend and Outbreak which was run by Klippy are some of my favourites that were created and GMed by other people. I'm going to throw out Seeds of Tomorrow as well. Technically, it's mine, but I'm not actually participating and the story is entirely the work of the participants who are doing amazing things with very little input from me. Depending on how the story plays out and the characters develop, the current version of PinkSapphire's Yokai Academy could end up on the list too.