Chocolate pecan banana bread is by far the best type of banana bread I have ever had. Surprisingly, it is lighter and less sticky than typical banana bread and, in my opinion, more flavorful and elegant-looking. In this recipe, there is a good balance of chocolate and nuts. Using half the amount of nuts than chocolate benefits the overall palette of this cake. Pecans can be substituted with walnuts with a slightly less mild taste. Additionally, rum can be added to spice it up a little, although many people will prefer it more mellow in taste.