Sorry for the delay. I will not include corporate spots on my list since must are from the States and you know what kind of wings you will get at spots like Hooters. The two places that I have found have wings that are at least good, if not spicy are:
1. Drakes in the Zona Colonial
2. In Plaza Juan Baron on the Malecon there is a spot back by the water (don’t remember the name) that has pretty good wings. You just have to ask for their spicy sauce and they will look at you like you must be crazy but will eventually bring you just a little bit of it–ask for more of it.
If I find more, in Santo Domingo, I will update this list.