Jessica Alba has been named the sexiest woman in the world. The “Sin City” beauty topped British men`s magazine FHM`s annual 100 Sexiest Women in the World list. FHM editor, Chris Bell, said: “She`s a talented, successful and beautiful actress who clearly has sex appeal that translates worldwide.” Alba, 25, saw off stiff competition from British glamour model Keeley Hazell and “Desperate Housewives” star Eva Longoria, who claimed second and third place respectively. Brazilian supermodel Adriana Lima came fourth,