General cleanliness and quality of the hotel. I'm always drawn to places that look modern and like a lot of care has been put into making it nice. I also judge on the outside a little bit, too - if it looks run down or like it's in a not-so-nice area then I'm deterred. I don't care much about breakfast or amenities. All I really want is a nice room with a private bathroom. Price can't be astronomical but I don't mind spending a bit more on a classier place.
You can help the HubPages community highlight top quality content by ranking this answer up or down.