The hot link corn dog from Corn Dog Castle is my number one must have but no WDW corn dog has ever compared to DL's (churros either) in the past. However, I haven't tried the food truck one, didn't even know of its existence. Off to find a menu, if they do have hot link ones I would make a stop there.
ETA: food truck just has regular corn dogs, not hot links. Gotta plan another DLR trip, I guess.