Combine dry ingredients in large bowl. Add eggs and oil, stirring til all dry ingredients are moistened. DO NOT BEAT. Stir in vanilla, butter flavoring, pineapple, 1/2 cup of pecans and bananas.
Spoon batter into 3 well greased and floured 9 inch cake pans. Bake at 350 for 25-30 minutes. Cool in pans for 10 minutes.
Icing: Combine 16 oz. of cream cheese and 2 sticks oleo (softened), add 2 lbs of powdered sugar. Beat until light and fluffy. Stir 2 tsp. vanilla, 1 tsp. butter flavor and 1/2 cup pecans. It will make extra icing, I save the extra icing and add a dollop to each slice of the cake when sliced.