I agree with regards to Jolie. She is the only one who springs immediately to mind. In fact, whenever I see her I can only think of her father, Jon Voight (A great actor, BTW).
Never found Hillary Duff attractive, but she looks awful as a brunette.
Lindsay Lohan was very attractive in 2004, but looks like a Golden Girl now. Don't do drugs, folks.
Jennifer Aniston has always gotten by as the "cute girl-next-door" type (I agree that Courtney Cox is much hotter; always has been and always will be). However, for those of you who consider Aniston "overrated" or not hot at all, I HIGHLY recommend seeing this:
http://www.imdb.com/title/tt1499658/I find Scarlett Johansson and Megan Fox attractive, but the latter is a bit too trailer parkish for my liking.
My favorite active Hollywood starlet is Charlize Theron, and my all-time favorite is Grace Kelly.
My all-time hottest woman: Belinda Carlisle in the mid/late 80s.