Auteur, I respect your sentiments towards Looking For Mr Goodbar and The Exorcist. Although you could justifiably make accusatons of misogyny against it, I really don't think that that is the intention of the film. Although the actions of Keaton's character in the film are portreyed in a bad light, the film is ultimately in paraise of her. It says that promiscuity can have life shattering reprocutions, but it also makes a lot more sense than the western ideals of love and romance. Keaton is initially attracted to the lifestyle we see in the film after her inability to have success via conventional relationships. What the film tells us is that society has decided for us how we are supposed to live our lives, and it is made almost impossible for us to be able to live any other way.
I think it is very good of you to acknowlege the technical strengths of films that don't necissarly appeal to you. To often, we end up denying that a film has any merit whatsoever simply because it didn't appeal to our personal taste.
You made an interesting point about The Exorcist. I'l talk about that later, when I can summon the mental energy.