I can't help pointing out that Post drama critic Elisabeth Vincentelli has written an article on the worst theater flops of the year -- and she doesn't restrict it to Broadway.
Her list, in order from worst:
1. China Doll
2. Would You Still Love Me If.... (that's the one directed by Kathleen Turner)
3. Dinner with the Boys (That's the one written by and starring Dan Lauria, of The Wonder Years and Lombardi)
4. Doctor Zhivago
5. Wolf Hall . In this one, she adds: "How many of those pseudo-highbrow, dull-as-hell British imports must we endure? (See also: “King Charles III”)"