Gator is good eating if it's prepared right.
I don't know if they're raised differently for food, though. Seems like if you make sure they're fed only healthy, organic prey, then they should be good to eat. But is there an ideal size/age to butcher them?
So long as it's legal where you live, the research is done, and steps taken to make sure they're cared for properly, I wouldn't have an issue with someone choosing to do that.