Like anywhere, FL is a tradeoff. I live on the west coast; mosquito's are really not that bad at all anywhere near the coast. Maybe for a few minutes around sunset on a still evening.
When you are out on the boat on Christmas day in a T-shirt, Florida is wonderful. When you step out of your car and start sweating before you get to the hangar door in July, you understand why so many people are snowbirds, even though we love to make fun of them. The coastal areas are definitely more tolerable in the summer though as we usually have a nice seabreeze.
On the flying front, tons of neat places to explore within an hour or two RV flight, however, you might start to miss some of the variety, and even get tired of staring down at white beaches and blue water all the time, believe it or not.
Because of our location on a peninsula, you have less options within a certain range, and most of them are in or near florida. What that means is that if you were based in say, Georgia, you could be a few hours flying time away from either the mountains of NC or TN, the beaches of FL, GA, or SC, or other parts of the gulf coast. You're also a few hours closer to the rest of the country. In Florida we are close to lots of neat things, but they are almost all IN Florida. Bahamas are cool but paperwork and fees sound like a pain. Being a short hop from Key West is nice.
I would love to somebody live in NC and be within reasonable flying distance of most of the East Coast.
Chris