I'm with Johnboy, Lansbury's is extraordinary. I saw it London, at the Kennedy Center, and even in the round at the old Shady Grove Music Fair (MD). Always wonderful.
2nd: Bernadette's.
Leasat favorite on CD: LuPone. I liked her a lot at City Center, but the recording feels very self-indulgent, taking the anger way beyond what Buckley did at Papermill, screaming for Exorcist-like effect "...ready or not, here's comes MOMMA!" as if she's going to wring a chicken neck. The performance as a whole was so persuasive on the stage, I wish she'd tried less hard for something "definitive" on the recording. Though she's vocally the strongest of all of them, even Merman, the rage-fueled flourishes added in the studio that day make the performance less nuanced, not more. Of course, that's just my opinion.
"I'm a comedian, but in my spare time, things bother me." Garry Shandling