You have a few options here. John Deere, Toro, and Cub Cadet continue to make their own product. The rest are made buy American Yard Products - Craftsman, MTD, Poulan, Husqvarna, Ariens (at Home Depot), etc.
My suggestion is to go with the Deer, Toro, or Cub Cadet. I have an Ariens from Home Depot and I don't love it.