Hmm...well i think you could say "the best musical of the 40's" or "the best musical of the 90's" but all over...so many different hits...
...
Gypsy would probably be up there
Bye Bye Birdie too (even though its not quite as well loved or famous as others, i still think its brilliant)
Anything by Rogers and Hammerstien
and, oh, about a hundred others...
think about the sun-Pippin-think about her golden glance-how she lights the world up well, now it's your chance...