Premium Mini-dungeons in EMS.

RGTS (together with Neo City and it's expansion), Chaos Zakum/HT, Formosa (or whatever that toad woman is named; infact, that whole area (of which I don't even know the name)), Malaysia, Ulu City, Visitor PQ (it's a place after all), CWK(PQ), Pine Forest Area in Japan (Himes/Black Crow).

Indeed, nothing at all.

RGST, archer only essentially.
Chaos Zakum/HT, People do this for exp?
Toad, only people with high HP and decent equips even think about killing this.
Ninja Castle, whole area sucks.
Malaysia, place sucks.
Ulu City, Dukus are decent but no better than skeles.
Visitor PQ, people do this for exp?
CWKPQ, people do this for exp?
Himes, granted. Your only valid argument in here.