Something to remember about these well known insurance companies. State Farm supposedly screwed many homeowners in Mississippi after Katrina, by refusing to pay. Just because a company is large and well known, with good finances, doesn't mean much. Why? Because they also have more policy holders. While that may work well for regular hazards such as the occasional fire or tree going through the roof, when a natural disaster such as a hurricane strikes, or heaven forbid, multiple hurricane strikes throughout the entire state in a given year, they will have tremendous payout to make, and suddenly, they may not look so good financially, and bankruptcy could also be in play, just to keep them afloat.
On the other hand, as mentioned earlier, these small companies may offer low rates, but may not be there to pay out if a major natural disaster strikes.
The best insurance is to build a solid house with 140mph rated windows and doors, hip roof with light slope and little overhang, cement-fiber siding, building above flood area, and not on a sand dune overlooking the beach below. I know it isn't the type of insurance you can buy, but it building to withstand disasters, is taking insurance.