As always, this is a non-comprehensive list. If you know of a town that I've missed--I know there was one in Ravenloft--let me know and maybe I'll get to it in a future post.
Hommlet (T1 V. of H.) Grade: A
Garrotenstadt, AKA Shankton, Murdergard, Assassinville, etc. (L2 Assassins Knot) A-
Orlanes (N1 Reptile God) A-
The plot requires that the PCs skulk around town investigating the populace, dragging up muck while drawing the attention of nefarious elements. Most if not all of the residents are provided with almost Hommlet-esque level of details--though many homes are abandoned which makes the job slightly easier. A solid town with a good plot, this is the first modge penned by Douglas Niles and is likely his best effort as well.
Restenford (L1 Bone Hill) B+
The KEEP (B2 KotB) B
Ducal City of Rhoona (X3 Curse of Xanathon) C
Suderham (A3 Aery of the Slave Lords) C
|"Are you alright?"|
Guido's Fort (B5 Horror on the Hill) D
Saltmarsh (U1 Sinister Secret of) D-
|A novice DM tasked with "quite thoroughly" preparing the village of Saltmarsh so that TSR doesn't have to.|