i think there is no way to even really pin down a definitive hottest woman of all time. so many beautiful women, different looks, different cultures, different time periods...its all just a matter of opinion.
i think adriana lima is fucking smoking hot, hotter than aniston, belucci and vergara, but i know there will be others that disagree. there will be people who think none of these women hold a candle to the beauties of the fifties. there is no right or wrong to what woman turns you on the most.