If the topic is Beef ribs, the best I've had in Texas were at Salt Lick in Dripping Springs.
I've not seen beef ribs offered in Luling or Lockhart. I don't remember them at Old Smokehouse either although I really like the chopped sandwich. Does the little cook still wear the funny ballcaps?
Texas Two Step near 1604/Bandera has beef ribs. They aren't the best but its local. Cooper's in NB is where we normally go for beef ribs but my 2 favorites are Salt Lick and Black's.