Controversial Nation of Islam leader Louis Farrakhan was named "Person of the Year" in a year-end online poll conducted by Black Entertainment Television. He beat out Oprah Winfrey, Sen. Barack Obama, and BET founder Robert L. Johnson. "An overwhelming percentage of our users agreed that Minister Farrakhan made the most positive impact on the black community over the past year," a BET vice president told FinalCall.com, which is Farrakhan's Web site. Most recently, the firebrand cleric--often a lightning rod on racial and religious issues --urged African-Americans to bring a class-action suit for criminal neglect against the United States on behalf …