I'm up, I'm up, and joining the partay.
Excellent choices, and yes, you must have seen the number in question. Of course, I've seen many of the listed choices, and what's interesting is that what stops the show one night in one production, might not another night in either the same production or a different production. When I tell people about My Heart Is So Full Of You I usually get, "Didn't stop the show when I saw it" and that's probably true. I saw it in the round with Robert Weede, and I'm here to tell you they had to literally stand there for three or four minutes until the applause stopped.
When I did High Spirits, we had two - you know, we had good, loyal audiences, but the big Go Into Your Trance number literally knocked them dead, as did Home Sweet Heaven.
I'm glad someone mentioned And I Am Telling You I Am Not Going, and I concure wholeheartedly with Who's That Woman and We'll Take A Glass Together.