Diane Keaton, for certain (even if she was in the "truly mediocre" movie that may have been the object of Peter T.'s scorn). Personally, I liked "Something's Gotta Give." Nicholson was great and Ms. Keaton is an ubdoubtedly qualified "hottie," to use the vernacular.

I would also suggest a series of resounding wolf whistles for

Julie Christie, Jill Clayburgh, Ursula Andress and Julie Newmar.