Join Date: Nov 2009
Location: Washington, D.C.
Programs: AA Gold, UA Silver, Hyatt Plat, SPG Gold, Hilton Gold, Marriott Silver, Hertz #1 Club Gold
Posts: 219
It's not exactly what you're looking for, but I use tripadvisor for this. One click opens up a separate window for each of the major booking sites with rates for the hotel and date you've chosen.