Blake lives in Seattle and is planning a get-away with some friends to San Diego and needs to find a hotel for her group.  Blake enters "discount hotels san diego" in the Google search bar.  The following screenshot shows the ads that appear in the SERP. 

 

1. List the advertisers that earned an impression from Blake's search. 
2. Do you see a difference between the top listed ad and the others that earned an impression? What may have helped the top ad rank higher than the others?