What's the best health insurance company not tied to a single location?

I'm a travelling sales person with multiple mailing addresses. What location in the United States has the best health insurance rates and best health care? I'm in my mid 30's, non-smoker, healthy.
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You only have ONE legal residence, where you register to vote and file your taxes. That's the state where you buy your insurance from. You need to talk to a local broker, who can find a carrier in YOUR state, who will cover you out of state, also. You probably won't be able to do this yourself (without spending hundreds of hours researching), and you shouldn't buy online, anyway.
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