You can crockpot a pork shoulder to get that good porky sweetness, too.
Here's why I think posole' works it's magic on people. You have the sweet, fatty goodness of pork and the spiciness of the chiles in the sauce/gravy/broth, and then the bland starchiness of the hominy to bridge the two. Taken altogether, it is very simple but amazing.
I make mine more from scratch by cooking down 6 guajillo peppers in a quart of the pork broth and then putting it thru a colander to get rid of the seeds and the skins of the dried peppers. A little oregano and garlic, salt to taste. This stuff freezes nicely, too. Very important to me because I can't figure out how to make a small batch! Warning, it can stain plastic storage containers.
And a nice sprinkling of finely shredded cabbage over the top just because Jordo doesn't like it!