I use the "Rib Rub Seasoning" from Frisco Spices. I think it is just local to Omaha, NE but you can order on their website. Generally I add about 1 part black pepper for every 3 parts prepared seasoning for ribs and pork butt.
If not using my own I like Mad Hunky Rub...
Got Jeff's rub and always make a double batch. 1/2 goes in the freezer.
Works great on everything so far!
No Creosote! A-Maze-N Smokers