I don't buy into any idea that an entire state is better, or worse, to retire in than another. There are large differences in taxes on retirement, real estate, food, general goods, general cost of living, etc.
As far as health care, can't generalize for a state. You can find info on health care facilities for cities and some general regions.
But what is best for retirement? Weather, indoor activities, outdoor activities, politics, access to public transportation, cultural activities, interest groups you might want to join, neighborhood programs, crime statistics, demographics, etc. Endless facts about specific areas that you would want to live in. Just picking a state is just too broad.
If one has family, that may trump all other considerations regardless of the negatives of living in that area. Some people move for inexpensive housing but find there is nothing going on of much interest in their community. Lots of anecdotal stories that I've heard of people moving to places in Arizona, from the midwest, to escape the winter and snow around here. Then, they find that for a good portion of the year, it's too hot to go anyplace unless you're out at 5:00am or after 9:00pm. I know someone who moved back from California because they missed the changing seasons.
You have a lot of research, and thinking, to do.
"...Why is everyone a victim? Take personal responsibility for your life..."