What is the best liquid to cook pulled pork in?

I'm curious, what do you think is the optimal liquid to use when cooking pulled pork? Is it a classic barbecue sauce for that smoky, sweet flavor? Or perhaps a tangy vinegar-based sauce for a more southern twist? Or is there another type of liquid that you find enhances the tenderness and flavor of the pork even further? I'm eager to hear your thoughts on the best liquid to use for cooking up a delicious batch of pulled pork.