Line a 9" pieplate or cakepan with plastic wrap; set aside. Combine first 3 ingredients in a mixing bowl; beat at medium speed of an electric mixer until smooth. Spoon mixture into prepared pieplate; spread evenly to edge. Sprinkle with chopped pecans.
Combine 2 packages cream cheese, Camembert cheese (including rind), blue cheese, and Swiss cheese in a medium mixing bowl; beat at medium speed until smooth. Spoon mixture over pecans into pieplate; spread evenly to edge. Cover and chill at least 2 hours. Invert onto serving plate; carefully remove plastic wrap. Garnish, if desired. Serve with apple wedges and pear slices.