Big snappers are good. If you get above 15#'s or so, the meat is tough.
We catch them on jugs or fish for them. Then we boil a wheelbarrow of water and chuck him in there. The lift him up and take off all the skins, toenails, and cut that airplane shaped shell out of the bottom. Then cut off the legs and neck and tail to eat. Throw all that yellow looking fat away. It tates like $hi^. They are good in soup, but you need to try them fried.