Don’t know how true it is, but according to some FBI guys I met in the early 70’s, Bobby was the bigger swordsman.
Pretty much all the Kennedys, as far as I can see. Joe Kennedy, Sr., was a mobster, and over the years it seems to have run in the family. For several generations.
Drunken, womanizing, “I’m entitled” louts, just about all of them. JFK’s mother seems to have been a decent woman, and she managed to teach the brothers some manners, if not actually improve their behavior. So with the complicity of the media they got away with it.