Hey Dan, i didn't mean "italic" and "regular", but i think it's a good idea to make them distintive in this way. What i meant was that there are some city names which are in a horizontal "straight" line and some are curved and/or diagonal (e.g. "Garthrand", "Nongleth", "Ricken", "Lemothir", "Wartherling").
As with the distinction between italic and regular, i think to make all the city-labels horizontal would make the map/ the labels overall more readable. In some cases i think you were going to make them so, to avoid an overlapping with the county names ("Nongleth") or the coastline ("Wartherling"). If you position them a bit different, it should work to make them horizontal and not overlap them with other labels. A great overview (Ravs even calls it a "must read" ) on this topic is Eduard Imhof's "Positioning Names on Maps" in case you don't know it yet. Its absolutely worth to have a look at this.
Keep up the great work!
Cheers,
AL