I am in need of guidance. My family is flying into Dulles from Seattle on the afternoon of Friday, September 6. Our plan is to see the Orioles game on Saturday or Sunday afternoon, but I have no idea where to stay. If we find a place in the city, we have to pay for valet parking; so I'd prefer to stay a bit outside the downtown area. I just have no idea where to look. I'd prefer to stay in Marriott or Hilton branded hotels (loyalty program). Any and all ideas are most welcome. We'll be staying in Baltimore until Monday and then we're off to Philadelphia to catch a Phillies game. Thanks!