I live on a sailboat in South Florida and there is a salt water croc that lives about 500 yards from me in some mangroves. It’s not as large (bulk) or as long and has a narrower body than an alligator, and just LOVES to eat iguanas.
Like the iguanas, pythons, anacondas, etc etc the caimans arrived with the exotic pet trade. You could purchase a <1 foot caiman in the early 80s in Florida for under $60. Then once those mean aggressive bastards got 3-5 feet people just dumped them in the woods/swamps.
Between the American alligator, saltwater croc or caiman, Ill face the caiman last. Those fuckers are mean AF, territorial and did I mention mean?
[edit - American Croc, not one of those dinosauric African/Saltwater monsters]