Growing up in the south, here are some of the standards I remember at church potlucks, family gatherings, etc.
Pecan Pie
Chocolate Pecan Pie
Red Velvet Cake
Coconut Cake
Chocolate Cake (yellow cake with chocolate frosting)
Banana Pudding (usually the cooked kind)
Peach cobbler
Chocolate Meringue Pie
Coconut Pie
Gooey Butter Cake (called Chess Cake in my family...Paula Deen's is just like my cousin used to make when I was a kid in SE Georgia)
Chocolate Delight (like this
Cooks.com - Recipe - Chocolate Delight)
Pound Cake (I have a recipe for a good cream cheese pound cake.)
Sweet Potato Pie
Pumpkin Pie
My grandmother's specialty Scuppernong Pie (made from scuppernong grapes with meringue on top......yum!)
If I think of more, I will post them.