I was checking out the Express deals in Prague for December, and Priceline had an offer that I could "unwrap" (reveal) the names of up to 5 hotels before I booked a reservation.
So here are the hotel names and they are all located in Old Town Square - Astronomical Clock:
Design Hotel Metropol ($120)
3 stars - Pets allowed, restaurant
Charles Bridge Palace ($92)
3 1/2 stars - Free Internet
Grand Hotel Praha ($108)
4 stars - Business center, restaurant, pets allowed, free internet
Grand Hotel Bohemia Prague ($171)
5 stars - Restaurant, handicap accessible, pets allowed, free internet, business center
I thought this information might be helpful to others. I ended up not booking any because my reservation at a certain hotel made months ago ended up to be a better deal.