In small bowl, combine flour, baking powder, cinnamon, salt, allspice and nutmeg; set aside. In large bowl, cream butter and sugar with electric mixer until light and fluffy. Add eggs one at a time, mixing well after each addition; beat in vanilla. Add flour mixture alternately with pumpkin until well combined; mix in 3/4 cup of chocolate chips. Divide batter evenly between the four pan cavities.