It's wonderful when a great score has a great Overture to match, as with some of the shows that have been mentioned. But when an orchestrator can create a fantastic Overture from lesser material, that's truly an achievement. Robert Ginzler and Sid Ramin, who did the orchestrations for Gypsy, later collaborated on Wildcat. The Wildcat score has its peaks and valleys, but that Overture starts like a house on fire and never lets up. No matter the quality of the show that followed, the Wildcat Overture sounds like it belongs to a hit.
Begin at the beginning and go on till you come to the end: then stop.