So, thought it'd be nice to have a place to collect specific dungeon strats for those of us going after the Vicious token.
Single boss dungeons:
Eastern Tundra: Only one boss and a Taurogzerker (or Taurog priest or Taurog monk) can just punch him to death. There are stronger choices but you can see just how solid one of the game's most basic builds is.
Den Of Danger: Gorgons are fun and a VT run on a basic dungeon is a great way to learn how to play one.
Two boss dungeons:
Northern Desert: Jehora Jeheyu Bloodmage. One spellcaster, two highly flammable bosses. Let the games begin.
Hexx Ruins: Earthmother spellcaster. Stone revenants and high level monsters. Zap your bosses. Gogogo.
Labyrinth New Style: Following OneMoreNameless's lead, the Self-Cannon. Take a warlord (Gnome with JJ) Weytwut Rexx and the other boss to opposite sides of yourself and proceed to let Rexx mangle any boss for you. In addition to being quite easy this is hilarious.