On that reality competition show, one of the big winners was loading down his pork butt with Lawry's Seasoned Salt. Reality TV aside, I was surprised at such a simple approach. Of course, it was for pulled pork which is going to blend in to the meat and only complement whatever sauce is added.
Personally, I just buy the big jar of 'Cajun' seasoning from the restaurant supply store for butts, mainly because salt is not the main ingredient. Ribs I use my own carolina marinade, chickens I just salt and pepper because we don't eat the skin.