First, two lousy ones.
My sainted Granny was enamored of a mixture that started with Smucker’s Goober and Grape (you know–peanut butter and grape jelly swirled together in the jar) spread thickly on white bread, topped with two thick slices of bologna. Just the mention of "Goober grape and boloney" could even make my grandfather a bit queasy, but Granny would only answer, "Oh you don’t know what good is!"
My coworker Brian is enamored of Peanut Butter, pickles, cheese, Miracle Whip, and barbecue sauce on white. I am shuddering even as I type this.
My favorite has to be excellent corned beef and swiss, sliced thin, and piled high atop excellent light rye, with Gulden’s mustard and a LOT of fresh horseradish. And if you’ve got a latke and a Dr. Brown’s Cel-Ray soda, so much the better.