Daddy Bruce's in Denver - I believe its gone. The one in Boulder is still there, I think, but its under different ownership.
I recommend Big Hoss on Tennyson and 40th. The brisket is Colorado grass fed beef and the sauce has a great taste and kick. Pulled pork ain't nothing to cry about either.
I also like Brother BBQ, but haven't yet figured out which spot at which time is serving the tasty food and which is serving the schlock.