I usually cook mine as Goulash, but have been using the slow cooker and making pulled pork.
Depends a lot on what they have been eating, as to how they taste. Younger is usually better all around. I try to take mine right after the grain harvest here. The Hogs here eat better than most people do, they raid somebodies fields daily, veggies, grain, Corn and even Strawberries.
I've been trying to harvest one out that has been mostly feeding on Cattail roots. No Acorns this year. Hope I'm lucky, I'm interested in how one tastes that has been eating mostly Cattail roots.
Some of it can be how quick they go down and die. I'm not real fond of runners or a slow death, which tends to fill the meat with hormones and/or the byproducts of panic. Funny though, the women tend to favor high hormone/lactic acid meat.