I personally wouldn't live in Florida, or anywhere else in the old South for that matter. Or the Dakotas, Montana, Nebraska, Missouri, Kansas, Iowa, Nevada, Idaho... Utah, sheesh..
I might make an exception for parts of North Carolina, maybe parts of Virginia.
I live in an extremely blue part of a very blue Midwestern state. I echo what Pallisers and BritWife have said.
People referencing low taxes don't know what they're talking about. Americans carry a heavy tax burden. There are federal and state income taxes (though some states don't levy a state income tax), retail taxes on everything, county taxes, municipal and state registration costs for your vehicle, property taxes based on a valuation of your home, and on top of that you pay for water, sewer, and garbage disposal/recycling, utilities, etc.
And financial aid can make a dent in the cost of attending university, sometimes a really big one.
All of my DCs have Irish passports and are happy to have a choice as to where they can spend their lives.