Both Nutricote and Osmocote are slow-release fertilizers. Personally, I don't like either one of them for in-ground use. They're fine in a nursery setting, but they seem to be too "hot" for the garden.

Your best choice for a multi-purpose fertilizer is 8-6-12 or failing that, 12-6-8, both with micronutrients.

For me the slow-release fertilizers are a must. I use organics, mainly Espoma products like Flowertone, Rosetone and Plant-tone. But I don't think you can do better than Nutricote 13-13-13, especially if you want flowers. Since most of Florida is sand other fertilizers tend to wash out too quickly. I had a nursery owner tell me that Nutricote is superior to Osmocote because it releases at slower and more predictable rate.

I go to Apopka every spring and buy a 50lb bag of Nutricote 13-13-13.