I can't think of a better one off the top of my head. To do it the second game of the year, on the road - not their "home court" but a venue in the same city where they usually play a game every year, vs a probable #1 seed who many think is the best defensive team in the country, is incredibly impressive, imo. It was an exciting game played at a very high level. The kind of game you'd expect at the elite 8 level and up.
I was too young to remember any of Coach Sonny's teams, so I don't know if they had any games that would qualify. I know some of the Ellis teams played a few fairly high-profile OOC games, but I don't recall one of this magnitude. I don't think lebo had anything remotely close and I can't remember any other coaches in my lifetime.
I didn't really expect to beat Baylor early last year, but felt like we should be competitive with anyone after watching the game. I thought this team had a couple more pieces, but this would be an even tougher test. After tonight, I won't be convinced there's a game on the schedule that we can't win.