Interstate BBQ in Memphis is probably my favorite place for BBQ in the south (atmosphere excluded). Germantown Commisary has the best ribs in my opinion. Rendezvous is right there with the ribs. Neither need any sauce and are smoked to perfection.
Interstate for the pulled pork and Rendezvous for the ribs. Commissary has great ribs but we prefer the atmosphere at Charlie V's (Rendezvous) - plus - Beale is just a couple of blocks away. Another great eatery downtown Memphis is Gus's Fried Chicken. Tops in my book.