For what it’s worth I’ve seen stands selling iguana meat in Costa Rica. I confess I didn’t try it, but they seemed to be doing brisk business with the local and some tourists.
There’s a Cajun restaurant here in Cape Girardeau that features alligator meat. I don’t think it would taste all that different.
Iguana tastes like the clichéd chicken. It’s more tender than alligator. I prefer the iguana. Central Americans prepare it the best.