I did manage to see Miss Pet(ula) Clark as Norma Desmond several times in 1999 and in one of her final stops in April 2000 (damn...16 years ago!) here in Austin, Texas. Anyway, I've never cared for Glenn (obviously). In this article, Ms. Clark discusses what she thought of Glenn Close and the character of Norma Desmond. http://www.petulaclark.net/theatre/austonchronicle.htm
I remember Petula Clark's perf as o.k., but thought her Norma was too hammy/comedic and not sufficiently dark. But that's my own perspective.
"Noel [Coward] and I were in Paris once. Adjoining rooms, of course. One night, I felt mischievous, so I knocked on Noel's door, and he asked, 'Who is it?' I lowered my voice and said 'Hotel detective. Have you got a gentleman in your room?' He answered, 'Just a minute, I'll ask him.'" (Beatrice Lillie)