|Subject: Wurzburg or Nurnberg|
Although a bit late, I also want to put my two cents about your question.
Wurzburg is nothing special in itself, but the Residenz is really worth seeing,with its great Tiepolo frescoes if you like the genre.Festung (Fortress) Marienberg is also a great look in the night. Nurnberg is more fascinating if we consider the global look of the ancient city center.
Don't forget that Rothenburg lies on the Romantische Strasse, and even small towns on this road are charming (Dinkelsbuhl, Nordlingen). Other fascinating small towns in the area, but not on the R.S. are Michelstadt and Miltenberg. Let me stop here, or you'll end up sightseeing a lot and studying less than expected! Have a nice time in Germany. Ciao from Leonardo