No doubt, any individual's mom is the most beautiful woman in the world.
But let me take the liberty of re-phrasing 7SEAPAR's inferred question based on his own answer.
'Who is/are the SEXIEST WOMAN/WOMEN in the world?'
My answer would be (not necessarily in the same order)
--Halle Berry (The entire 'Monster Ball' was Halle Berry; 'Make me feel goooo...'.)
--Jessica Alba (Never watched any of her movies, but she, smiling and clad in the tiniiiiiiest bikini, makes my juices flow..and sometime overflow too. )
--Catherine Zeta Jones (brunette beauty having a seemingly blissful marriage/family life. The model wife or wife model? Either way it rhymes.)
--Natalie Portman (She could still rule your heart even when she chooses to go bald)
--Petra Nemcova (She could have prevented the 'War in Iraq' with her smile)
--Charlize Theron (The leggy biatch who could arguably be named the heiress apparent to Sharon Stone. May I say? I am a 'legperson'.)
--Beyonce Knowles (Her healthy base, that she shakes, makes me watch her music videos even when the sound system is not working.)
--Carmen Electra (After driving along the 'dangerous curves' and you have made your way to the 'top', then you could enjoy the view of an equally beautiful face.)
--Salma Hayek (She could kill you with that accent that comes through those luscious lips, face, bust,.. you name it.)