A slightly dissident view: as far as I can tell all of these women are actresses which means for these glamour shots they had access to the best makeup artists and photographers that could be found. That is not to say they are not attractive but "most beautiful"? Plus the pool could be expanded to include models like Cindy Crawford, who still looks hot, and Miss Universes and such.
While I am on the subject I will make an admission which might make me banned from the Guild of American Males. To wit, Marilyn Monroe never did anything for me. It's true. Otoh, I would crawl over broken glass naked just to have Raquel Welch pat me on the head. And she's a Libertarian/Conservative. Gorgeous woman.