I was stuck overnight at DFW a few weeks ago due to weather, but got to stay at the Grand Hyatt, with a runway view. What a super fun hotel, really good for one night. Gym was also great and pool area is also good for plane watching (and breathing in those sweet fumes). That said, it was pretty expensive and I maybe wouldn't have chosen it unless my travel insurance was picking up the tab...

Look forward to trying the A220. I live near the LGA flight path and did notice a number of them recently.