Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Stuttgart (60% of total searches to Baden-Wurttemberg). The next most popular destinations are Heidelberg (15%) and Baden-Baden (14%). Searches for hotels in Freiburg im Breisgau (11%) are also popular.
KAYAK users have found double rooms in Baden-Wurttemberg for as cheap as £12 (Gaggenau) in the last 3 days. The average price is £200.