They're all old fruit desserts that have been changed up a billion times, but generally speaking: a cobbler is baked with a biscuit like topping, while a buckle is fruit cake with cake batter (a grunt and a slump are just the same as a buckle.) Crisps and crumbles are pretty similar, topped with a crumbly streusel topping made with butter, flour, and sugar (and sometimes nuts and oats.) A betty is similar but instead it has the streusel topping layered with the fruit, throughout the dish. I want to make them ALL.