Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Strasbourg (44% of total searches to Alsace). The next most popular destinations are Basel (39%) and Colmar (12%). Searches for hotels in Mulhouse (4%) are also popular.
KAYAK users have found double rooms in Alsace for as cheap as £24 (Saint-Dié-des-Vosges) in the last 3 days. The average price is £114.