Let's start with something the hotel industry doesn't exactly advertise. When you book a hotel through a travel advisor, the property knows. And when you book through Booking.com, Hotels.com, or any third-party booking site, they know that too. The difference in how those two reservations get treated — which floor you land on, which direction you face, what's waiting when you check in — is bigger than most people realize. Not every room in a hotel is created equal. And not ev