I've never had donuts even close to as good as what you get at Jack Frost. The donuts themselves always have just the right texture, consistency, and flavor. Whether it's a glazed or a cake donut, you're getting something top-notch. And then there's the different toppings. I could talk about many of them, but do yourself a favor and get the donut with both the white and chocolate cream. I wish they sold that stuff in a tub so I could just go at it with a spoon.
Plus, despite the fact they're often busy the service is always excellent. I go there every other week or so with my son before school, and they're always so nice to him (and half the time they give him his donut for free, which I never ask them to do). Just an excellent, old-school Cleveland institution.