NEW YORK, N.Y. - In its annual "Who's Next" issue, Newsweek recaps the events of 2003 and looks ahead to the people who are going to stand out in 2004, including: New York's crusading Attorney General; an emerging powerbroker in post-Saddam Iraq; San Francisco's dashing new mayor; a black bishop and a female university president each working to steady institutions rocked by controversy; a female wrestler out for Olympic gold; and two stunning young movie stars-in-the-making.     The December 29 issue (on newsstands Monday, December 22 and on sale for two weeks) also features the annual "Perspectives" roundup, a review of the year's best editorial cartoons and quotes.    The cover features "The Daily Show" host Jon Stewart, whose humor hits the target so consistently that he's becoming a political force. When John Edwards announced his presidential candidacy on the show, Stewart tells Newsweek that at first no one took it seriously. "After he said, 'I'm announcing that I'm running for president,' I said, 'I have to warn you we are a fake show, so you might have to do this again somewhere'." he says. Stewart also downplays studies that claim young people get a huge portion of their news from late-night comedy. "I just don't think it's possible," he says. "We're on channel 45-in New York! Literally on the remote-control journey you could absorb more news than you would get from our show."    The "Who's Next" lineup includes people who'll be making the headlines in the coming year in the areas of politics, education, sports, fashion, government, entertainment and international affairs. Those named include:    * Patricia Miranda, Olympic gold medal hopeful regarded by some at USA Wrestling to be the toughest competitor, man or woman, on the American team.    * Eliot Spitzer, attorney general of New York who has launched arelentless public assault on some of country's most powerful institutions, and who, Newsweek has learned, has been approached by key Democratic presidential hopefuls seeking his endorsement for '04.    * Mary Sue Coleman, the first woman president of the University of Michigan, who's writing the rule book on how to foster diversity by looking beyond the traditional definitions of affirmative action.    * Mark McClellan, FDA Commissioner who was tapped for the job in the fall of 2002 and will handle two of the hottest issues of 2004: a proposalto approve over-the-counter sales of the "morning after" contraceptive pill and the drive to import cheap prescription drugs from Canada.    * Gavin Newsome, incoming mayor of San Francisco who has already won national notice for his relentless ambition, good looks and pro-business agenda in a famously liberal city.    * Mowaffak al-Rubaie, Iraqi Governing Council member who is often overlooked on press rosters of Iraq's rising stars, but epitomizes the subtle complexities of Iraq's emerging politics.    * James Murdoch, younger son of media mogul Rupert Murdoch who has joined the family firm and, in November, after running the Star TV division in Asia, was hired as CEO of British Sky Broadcasting.    * Wilton Gregory, Catholic Bishop who won election as the first black president of the bishops' conference in November 2001, just before the child-sex-abuse scandal erupted.    * Larry Probst, CEO of Electronic Arts, the world's largest independent videogame publisher, with 4,400 employees worldwide generating some $2.5 billion in annual revenue.    * Kiera Knightley, actress who starred in hits "Bend it Like Beckham" and "Pirates of the Caribbean" and will play the role of Guinevere in next July's medieval epic "King Arthur."    * Gael Garcia Bernal, actor who starred in the Oscar-nominated "Amores Perros" and next year will play revolutionary Che Guevara in "Motorcycle Diaries," as well as taking on four roles in Pedro Almodovar's "Bad Education."    * The Neptunes, producers Pharrell Williams and Chad Hugo who specialize in reinventing pop stars have produced a new Britney Spears single, as well as Gwen Stefani's upcoming solo debut, and are said to be negotiating J. Lo's next CD.    * Holly Dunlap, shoe designer whose "Hollywould" brand is worn by movie stars and socialites and has earned her a nomination for theprestigious Council of Fashion Designers of America award.