I believe my favorite choreography of all time remains "The Waiter's Galop" from Hello Dolly! I first saw the number in the national tour with Mary Martin, on Broadway with a not-so-hot Ginger Rogers, and the 1978 and 1995 revivals with Carol Channing. Right along with it, "Who's that Woman?" from Follies and Jerome Robbins' Atlantic City ballet from Higth Button Shoes, which I first saw in Jerome Robbins Broadway and was beautifully recreated in the not-so-hot Encores! production of High Button Shoes.