Absolutely O’Conner stole the show! Stanley Donen directed probably hundreds of films from the 1940’s on and not just musicals. He directed Charade with Carey Grant and Audrey Hepburn. I didn’t care much for musicals until I watched On The Town with Sinatra, Kelly, and Ann Miller.
Here is an interesting series on YouTube... Hollywood Graveyard. Very professionally and respectfully done. Lots of memories.
https://www.youtube.com/channel/UC3vpUC3JJuDaumWNS8EPQrA