Ross is not in the same family, they are slighty a notch down. TJ Maxx, Marshalls, Homegoods, and the former AJ Wright (as well as Chadwicks catalog) are owned by the same parent company, TJX (I worked at TJ Maxx for almost 4 years in high school). I would compare Ross to the former AJ Wright stores - you can still get some good stuff for a nice deal, but TJ Maxx & Marshalls carry more of the top brands.
BTW, two of our Marshalls stores had this Disney hard case luggage. We might be making a trip over there -- will have DH post pics if we go. It was cute, but we were actually going to the different Marshalls stores to add on to our new Victorinox luggage set!