@Micheline76,
I don't think most guests care if a place is hosted by a Superhost, and few use the Superhost search filter, because it can greatly reduce number of listing in the search return. Most guests don't think that a listing/host with a 4.79 rating is bad, Superhost it's just an Airbnb carrot put before hosts to incent them to perform at a certain level To me these are usually the top search and selection criteria:
- Location - country, city/town/village, neighborhood
- Price
- Size/the number of persons it can accommodate
- Amenities - are the minimum desired items listed
- Transportation to the rental, and to getting around
- Reviews - other guests' experiences can be the deciding factor whether to book or not