Since January, I have flown the following transoceanic legs in business class:
SR -- 4 trips (all SFO-ZRH)
DL -- 6 trips (various)
AF -- 2 trips. (all CDG-SFO)
By far, I thought AF was the best. It had not been so in previous years.
Food was outstanding. I can't comment on the wine, since I don't drink much wine when flying (it gives me a headache).