Well, here's my yellow cake recipe. It's a big recipe, comes out very high and light. I like to doctor it up and make strawberry cake, lemon cake, spice cake, etc out of it. Also, it's a firm enough cake that I use it as my tres leches cake. Just add milks to finished cake

Let me know if you need to know how to doctor this up.
Also, I'd be willing to share my chocolate cake recipe over PM only. I don't want it published in public online because it's a family recipe that I improved on so is my own recipe. I have won a baking contest with it and just made it for the state competition...should find out soon if I won or not. I'm thinking to enter it in the fair as well

my yellow cake recipe:
Buttermilk yellow cake
1 cup butter
2 cups sugar
4 eggs, separated
3 cups flour (AP flour but can substitute equal weight of pastry flour)
1 tsp baking soda
1 tsp cream of tartar
1 cup buttermilk
1.5 tsp vanilla
Cream butter and sugar until light. Add egg yolks, one at a time until well encorporated. Sift dry ingredients. Add alternately with buttermilk/vanilla, starting and ending with dry. Mix only until smooth. Don't overmix. Whip up the whites separately and fold into the batter. Bake in a 9x13 pan at 350' for approximately 25-30 minutes or until toothpick comes out clean.