I've not had the opportunity to taste crocodile, but have very much enjoyed kangaroo and ostrich. I love trying new things, and would pretty much eat or cook anything once. Duck eggs are lovely, nailit. So much meatier in taste.
Forget about the cuddly, cutesy pictures you see of animals when it comes to eating. I don't feel any more guilty tucking into a more exotic animal than I do a chicken. I remember feeling a pang of guilt many years ago when served meat at a dinner party, only to find out afterwards that it was horse. But the deed had been done, the food had been eaten and enjoyed.