So, lets just list our favorite mappers.
All my favorite mappers came from Rise of the Witch King
TheNotorious for New Mirkwood Realm, BFME Soccer, and BattleWagon Race
Eliec for the DeepingWall and City of the Kings
Puppeteer for maps (can't remember them)
Those maps were just epic to play online and fool around with. Whenever I hosted a server with those maps, everyone immediately joined.