Doug's is the best. Used to go to the one at 34th and Georgia. We could make it over there for lunch when I was in high school. Now I go to the one on Teckla when I'm in town. I'll be in Amarillo next Monday thru Thursday, and will probably eat there 3 times.
The Frito Pie is unbelievable. I like to get an extra bag of Fritos just to add some.
Great BBQ, and very inexpensive. How it should be.