Pratts or The Ridgewood in Tenn?
We've eaten at both a number of times.
Pratt's all you care to eat comes with a lot of sides. If you've a big appetite Pratt's will fill you up and it is pretty good value for money.
Ridgewood is a destination restaurant that doesn't look like one. Their two kinds of BBQ are unlike any others and both are good although I like the very thin sliced pork a bit more than the beef. I love blue cheese and their blue cheese appetizer is one of my favorite indulgences. My husband always starts with a serving of their baked beans (and then we almost always get a gallon of baked beans to bring home with us.) Often we'll each get 'sweet slaw' as a salad; it's not mayo based and is the only cabbage my husband will eat. Their French fries somehow aren't oily at all.
Ridgewood will cost more than lunches at Pratt's. But we live about an hour and a half drive from both. We'll drive up to Ridgewood because we love their food. I don't think we've ever said "Let's drive up to Pratt's."