I can think of exactly 1 BBQ that is anywhere in the vicinity of my house, and even if I extend that radius out to beyond where I would ever drive for a meal, I still cannot think of a second one. Where I live you could throw a rock in the air and have a decent chance of it landing on either a coffee shop or a Thai restaurant... but BBQ places are nearly non-existent.
Ironically, I rarely eat BBQ in Dallas. For years we didn't do it very well up here. Now there are dozens of apparently great places, but see again, diminishing returns vs high prices. BBQ is something I mostly do when I'm on the road. I'll find excuses to head down Austin way just for good BBQ.
In Dallas I'm pretty cool with Slow Bone. Their sausage isn't the best, but good brisket and that's the place that wowed me with the smoked turkey. It's also five minutes from the AAC. Pecan Lodge is generally regarded as the best, but there will be a line. Same with Cattleack, and they're only open a couple of days a week. Heim just opened up around the corner from work, but I haven't been there. They get props for still offering a 3-meat plate, though, and the line should be pretty short.
Guy that owns and operates Slow Bone made his name cooking great fried chicken (and apparently still does). I suspect that's why the turkey is so good. He'll tell you it's all in the brine. They used to do wonderful brisket tamales on Fridays, but they were simply too much work. I miss those things.