There's the south eastern (Carolinas, I think) with slaw and chili.
If nobody has seen that "hot dog" special on pbs, or is not familiar with this phenomenon, I did a quick web search for "hot dogs cole slaw chili"
which yielded plenty of hits. I also think this style of dressing a dog is popular in Mississippi as well.
"A true West Virginia hot dog is a heavenly creation that begins with a wiener on a soft steamed bun. Add mustard, a chili-like sauce and top it off with coleslaw and chopped onions and you have a symphony of taste that quite possibly is the reason that many transplanted West Virginians can never really be happy living anywhere else. Different parts of West Virginia have variations on the theme but the common elements are sweet, creamy coleslaw and chili. Anything else is just not a true West Virginia hot dog!"
Bleccch! They lost me at sweet, creamy coleslaw. I'm going to assume that they are really referring to that sugar laden Orval Kent style garbage. I can see slaw with real mayo, perhaps, but that sugary concoction that many people have replaced real cole slaw with is just vile in my opinion.
The program on PBS was a documentary titled "A hot dog program"
They run it a few times every year, and I watch it almost every time. They also run it on the history channel too. It does branch out across the country, and show most of the major regional styles including those eastern "rippers," and "splitters," chicago style, a few NY styles, Pink's in LA with the avocado and chili etc.
We cannot be friends if you do not know the difference between Mayo and Miracle Whip.