I love potatoes, so it was hard for me. I love mashed, french fries, au gratin, fried with onions, tater tots, potato salad, home fries, baked (probably my favorite), mickey dees hash browns, and while I'm not really so into chocolate, I love chips! Oh, and I seen someone listed potato pancakes. I've not had them since when my mom was alive, but she made them so good! I also love sweet potatoes, especially candied ones, though I eat yams more than sweet potatoes.
I have NO idea what jacket potatoes are though?
Edit: Oh, and I love boiled potatoes after they've cooked in the brooth from a pot roast.