I've lived in many states, and have done extensive traveling all over the United States, and personally loved Florida. The scenery is beautiful, the people are friendly, and there's always a party going down somewhere nearby. Everything seems so much cleaner down there, and having the ocean pretty close by is a plus since I love to surf.
The downside to Florida are the tropical storms and the humidity. Unless you're at the beach or in your home to keep cool regularly, the heat will get to you quickly. I've seen plenty of people pass out or end up in the hospital from heat strokes, so it's necessary to stay cool and hydrated.
To be honest, I really don't like Washington. It's calm here, but at times I feel like I get bored out here very easily. It could just be where I'm at though. Having no neighbors is always a plus.