First and foremost, you have to recognize that wild pigs are not domestic pigs. They have not lived a short life eating grain in a pen. They run, fight and forage for a living. Even a fat one does not have fat throughout the meat like domestic pork, only around the meat, under the skin. Like anything else, their condition and environment dictates how they will taste. The difference between the sexes has been covered pretty well and I will add that boars are leaner and harder to skin than sows because all the fighting and roaming that they do.
Comparing wild pork to domestic pork is much like comparing wild duck to domestic. There really is not much comparison, but it doesn't mean it's bad, you just have to understand it's different and know what you're doing.
I've handled hundreds without any ill effect.
