We do not reccommend a certain hotel.
Your local travel agency may provide you a better offer.
For your own convinience your hotel should be north of the river Danube (e.g. Lenas Donau, Fourside, Hotel Donaustadt Kagran, Arcotel,...)
or close to the underground lines U1 and U6.
Also the train lines S1, S2, S3 provide a good connection.