Even more important than the brand is to try to pick a "stock" color, one that is pre-mixed in that color from the factory.
Many is the time that I have need an extra gallon or so, and when I went back to the paint store, or the paint department at a big box store, the custom mix would be different from the batch of custom mix I bought just days ago.
Similarly, pick a brand that will still be around in a few years. 20 years ago, I built a house and standardized on "Dutch Boy Navajo White" for the interior. I also used the same color on rentals I had. About 10 years later Home Depot stopped carrying Dutch Boy and all my plans for perpetual color matching and one-coat repaints went up in smoke. I think they have started carrying it again, but find a store and a color that has been around since dirt was invented.
If it is at all damp where you live, and I don't see how it is possible not to be damp & humid in FL, get a double shot of mildewicide added into the paint when you buy it. This is a lot more important then brand in keeping your house looking good longer.
A lot of paint brands are local or regional, so you might have to just ask neighbors.
I have always thought that painting contractors would try to steer me to an adequate paint, but not the longest-lived one available. They want future business.