I can't say on some of these, but I flew Swissair in June of 2001 between ATL
and the service was amazing. ATL
and back were both on A330s. The flight attendants were constantly coming around with a meal, a snack, a drink service, or just something like hot towels. The food from ZRH
back to ATL
was better than a lot of stuff I've eaten in restaurants (never thought you'd hear that about airplane food!). It was really very very good. The seats were comfortable as well. They contoured perfectly to my body and had adjustable lumbar support. There are PTVs with reasonable entertainment, airshow, and fun games. My only complaint about Swissair was that the legroom on the A330s was somewhat limited (31" I believe), but not terrible. Just a bit tight. I know that Swiss is not Swissair, so they could be different for the better or worse, but even if Swiss is worse, their A330s, which have not changed, are still very comfortable. Besides, there is really good chocolate for very cheap in the ZRH
duty free shops!