I´m looking at booking a hotel in Germany for 2 nights for 15 people. We should need about 10 rooms as some are willing to share. What sites do you suggest or do I have to start making phonecalls directly to hotels? Can I even get a discount? It´s a weekend in Frankfurt, and most hotels are wide open or even empty. I know that I should get either the Marriott or Mövenpick on Priceline for a reasonable price. Should I call them and ask for about the same price? I´d prefer the Marriott for this visit.