My favorite award on TWA: 50K miles for a first class international ticket plus a companion first class upgrade. I could spend a few hundred dollars for a coach ticket, and two of us sit in the front - while one earned miles toward a subsequent trip.
My last international trip on TWA was in 1997. We were flying into Milan, when the FA came to me, took me by the hand, and told me that Princess Diana had just died. The pilot had gotten word over the radio.
I spent 10 years happily flying on TWA. Their award program rocked, and the ticket agents in San Diego always made sure I sat up front.