There are a few stands in the park. Because they are ODV (outdoor vending) they are not always in the exact same spot and are not always open. Typically you'll find one on the frontier land side of the hub, and one near fantasy gardens (walking toward Its a small world, you'll take a right like you are going to around the back of the matterhorn to autopia. Hard to explain. There was a couple ODV things in that area.
Dont have any idea how they compare- have never been to WDW. I can say they are smoked, and have a ham like flavor to them. It was good, but hard to eat.