I take my wild boar with a grain of salt (and some red wine) here in the States. In France and northern Spain and a few other places in Europe there are populations of native wild boars that live off the primeval rocky land and have bred minimally, if at all, with escaped domestic pigs. Boar hunting is a dangerous endeavor but since wolf populations are down, prey is aplenty and the meat is not that hard to come by or expensive. I ate boar several times in Spain including once at a campfire fresh from the hunt, and it tastes quite different from domestic pig, leaner as one might expect, but also gamier in a good mutton direction rather than a "porky" direction. To me it seemed best served with minimal spice and sauce, spit-roasted or braised in its own juices with some help from olive oil.
Source: http://www.iberianature.com/material/ph ... scrofa.jpgHere, including at Gaetano's (where chef does a nice ragu), any US-sourced "wild" boar has been introduced, and not from a breeding pair of primordial Pyrenean stock (you try getting them on a plane or boat), but from free-range farm-raised hybrids. Even in the places that they've re-escaped to the forests and can be hunted (eg Hogzilla in Georgia), you've got feedback-looped pigs, descended from domesticated animals. American wild boar does not taste like European wild boar in my experience. Part of this is because everyone that gets their hands on the meat cooks the living daylights out of it with port, tomato sauce, bacon fat, and everything else in the pantry, but I'm sure most of it is that, while gamey and lean through diet, you're still tasting centuries of human-directed evolution in the Wilbur direction.
The true native porkers in the Americas are the peccaries, which are completely distinct from pigs and don't interbreed. I haven't tasted those. Confusingly, they're also called javelinas - or jabali in Spanish, which is the same term for European wild boar. Haven't eaten a peccary but bet it would be good.