I am growing the following species of inga, which i think are all correctly labeled:
edulis, vulpina, gauchil, fastuosa, cinnamomea, feuillei, spectabilis. Hope to get a few more to grow and compare. But too soon to tell you which is the "best" tasting. Hope to have a taste report in time to come. Right now i'm kind of especially fond of spectabilis, mostly because it is very large and has lots of good pulp. I just planted a windbreak row with all these different species, 4 of each species.