Frosted Flakes. Cinnamon Life. Honey Bunches of Oats.
Runner ups are Corn Pops, Lucky Charms, Rice Krispies, and Cheerios (with no milk). Oh, and Raisen Bran.
I can't stand things like Captain Crunch, Coco puffs, etc. that leave a "film", for lack of better word, on my teeth/milk. I'll snack on it, but it makes my teeth hurt.