Well there are types of map which can't be done with a lot of success as RM, like RPGs, mostly because you can't work as well as in the editor on placing objects and eyecandies, but for some random types of games (such as escape) I think RM is the best choice because it let you choose the number of player you like and also game modes, and the map is random so you never get boring playing it a lot of times.
"You can't trust yeebaagooon to lead a rebelion, He would send everyone to steal mirrors so he could bask in his own brilliance." - Out Reach
"Yeebaagooon had never seen a more handsome man in all his life. He couldn't control himself, He needed to act. Gripping the mirror in his strong arms he kissed the figure before him..." - Out Reach
AoMH: Unfinished Scenarios|Singleplayer: Codename Ripto|Multiplayer: Minigames Z|CSC 7
Ex Seraphs Dictator, Spore Heaven Seraph