Jam-packed, covered in glaze. Keep your powdered sugar that covers everything it comes into contact with and makes you look like a coke head, bin the sprinkles that ruin the texture and pierce the roof of your mouth. Pack that damned doughnut with so much strawberry jam that my chin will look like a murder scene by the time I'm done. Occasionally I'll go for a good 'ol custard doughnut, but I mostly jam with that jam - jam-packed dough makes me go nuts for doughnuts.
Side note on Krispy Kreme - stale garbage every single time. I'd rather eat a glazed tire. Just go to a bakery, get yourself some nice, fresh doughnuts. I have no idea how the company stays open with such a trash product, easily the worst doughnuts I've ever had.