I would have to say "A Chef's Life" on PBS that follows Vivian Howard's NC / Southern cooking is one of the easiest to watch. It's down-home and really well-produced.
"Mind of a Chef" on the Netflix is really good for topics and I enjoyed the first chef that was featured on it with the ramen and Japanese influences of his heritage. "Chef's Kitchen" is really artsy and more personality / ambiance driven than about the actual food, but it is visually beautiful.
I don't have pay-TV so I can't rate any of the Food Network shows and such, but when I have seen ones like that where it's competition and judges and whatnot, I just don't like that.
The ATK and Cook's Country ones are really helpful for the aspiring home cook to learn some new techniques. And while I don't hate Chris Kimball as the host, I don't really miss him either.