I said the opening Show Boat and that would be my choice for a modern musical, But how about going way back, to the original Cloud Cuckooland, for example? I think it would be great to see an ancient Greek comedy in an un-ruined Greek theatre. So: The Birds Ὄρνιθες that is Aristophanes not Hitchcock.
Or how about the original Hamlet or The Tempest or A Midsummer Night's Dream? It would be hard to choose which opening night of an original Shakespearean production...
I would just have to go back to A Chorus Line and that record breaking performance with all the past cast members. What a night I voluntarily missed!! I could kick myself!
Definitely opening night of Follies. No other show comes close. To be able to see that set and those costumes in person and watch Dorothy Collins and the rest of the great cast preform would be perfection.
One of the original Ziegfield Follies; perhaps 1917 with Bert Williams, Eddie Cantor, Will Rogers and Fanny Brice.
The Last 5 Years with Sherie and Norbert
Either Broadway edition of Assassins
"I have had lots of failures, but I have never felt like giving up theater. There is a kind of inner conceit that most people have who work in theater. They always feel tomorrow is going to be alright and very often, it is."
-Oscar Hammerstein