There is one chain here, Bodacious, but I really don't care for it.
I grew up on Boadacious BBQ - the original on Highway 42 was close to home. The quality of those vary from store to store based on the franchisee. The one I go to now in Arlington is one of the better ones. My favorite thing about Bodacious is the beans. Best beans I have ever eaten at a barbecue place - not a hint of sugar, which is rare for a barbecue joint.
There are a ton of good joints in DFW. My new favorite is Lockhart Smokehouse in the Oak Cliff neighborhood in Dallas. I'm taking some friends from East Texas there on Thursday before a show at the Kessler Theater. It's payback for them taking us to Stanley's in Tyler last time we were out that way.