This Peanut Butter Banana Bread is some of the best banana bread we've ever had. It's super moist and the peanut butter flavor goes so well with the bananas and chocolate chips. It's a recipe from the March issue of Vegetarian Times, located on page 85. I find myself buying large bunches of clearance ripe bananas just to have the excuse to make this. One thing I do add to the recipe is a bit of unsweetened applesauce. So, I don't know if that contributes to the moistness, or if it would be just as moist without it. The Slashfood Blog posted the recipe for this dish. Lacto-ovo vegetarian.
[Added 4/20: If you try this recipe, note that in the instructions, it doesn't say when to add the sugar, so don't forget to add it. If you use a liquid sweetener, add it with the wet ingredients, and if you use a dry sweetener, add it with the dry ingredients. Also, be sure to use really ripe bananas for the best flavor.]