TOD
Live ballet performances:
I cannot remember all the ballets I have seen, but I've seen the New York City Ballet's Nutcracker at least four times live and a lot more on video.
I've seen the Joffrey Ballet perform Petruchka, The Nutcracker, and the minstrel ballet Cakewalk, with Hershy Kay's wonderful score based on Gottschalk.
I cannot remember who performed the Gilbert & Sullivan ballet Pineapple Poll, but I'm thinking it was the Joffrey Ballet.
New York City Ballet:
Fancy Free (Robbins)
Dances from West Side Story (Robbins)
Serenade (Balanchine)
The Cincinnati Ballet:
The Firebird
The Maryinsky Ballet
The Sleeping Beauty, recreation of the original Tchaikovsky production from 1890