I studied a fair amount about the American Revolution and it still is an interest of mine. I have to say that I don’t remember Cornwallis being portrayed as some stuffy snob. I remember him being portrayed in most of what I read as an aristocrat who initially opposed the war, but then was an intelligent, risk-taking commander who fought well. The one really bad thing I heard about him was that he fired into his own troops to try to win a battle. Howe is the one who was portrayed as dithering and undercutting his field commanders.
Yes, at Guilford Courthouse.
True. Cornwallis is considered to be one of their best generals.