I totally respect Jeff H's & SD's opinion as being very knowledgeable on boats, etc.
That being said, I have owned fin(s) and wing(s). I currently do own a wing. Fins come off easier, but you will run aground a while lot more. Fins typically point better and perform better too.
I personally have run aground on a wing keel more times than I could possibly even count. In Swest Florida, Keys, Bahamas, etc., it is just a way of life. There are many methods for getting it off, other than pulling over the mast... which can be problematic for a wing. Instead of recounting all of those here, I will just say that you get used to it. When you are in shallow, unfarmiliar grounds, just go slower.
In shallow water, I cannot imagine anything but a wing. You will have accessibility to places a deeper draft vessel cannot even dream of getting to. It opens up more areas.
Just my humble opinion.