Bill Cosby, Barbara Mandrell, Meryl Streep, Kenny Rogers and Andy Griffith are still tops with the public, as demonstrated by the plethora of kudos hurled their way at the 13th annual People's Choice Awards on Sunday night. Nearly all the winners were repeaters. Cosby won in the same three categories that he won last year, including favorite all-around male entertainer and favorite male television performer. "The Cosby Show" won again this year for favorite TV comedy. "L.A. Law" won best new drama, and "Alf" was chosen best new comedy.