Gator/croc - delicious
Frog legs - delicious
Snake - haven't tried it, heard from a friend who tried it in China that it's terribly chewy
I have no ethical issues eating the same species that I keep for pets. Frankly, I'd love to have a pet cow, but I certainly wouldn't stop eating steak.
On top of that, plenty of herps need to eat other herps as a large part of their diet. I have no issues with those animals or people who keep them and feed them their proper diet of toads/lizards/snakes. If it's not wrong to feed herps to those animals, it's not wrong to eat herps myself.