Doriana's room has best room condition, location, and the host. Doriana and her husband was so sweet and friendly which made us very comfortable. They gave us a list of good restaurants and some recommendation of places. (Which I didn't know).
The location was very near the Rialto bridge and is perfect place to look around Venice.
The room was also very clean and beautiful. We also had our own, big, and clean bathroom. I would definitely stay here again when I ever come back to Venice.