An odd one to add to this thread, but I will: Smoke BBQ Taqueria in Pittsburgh. Tacos only (except for Tuesday, when it's burgers only), but I had the most heavenly burnt ends on my burger last night--so good I actually picked a bit off my burger and ate a small mound of them separately. (Incidentally, the burgers themselves are actually some of the best burgers I've ever had anywhere, and I know a thing or two about burgers.) They have an in-house smoker they use for their brisket tacos, and they sell the burnt ends as a separate topping you can add to any item on their menu.

I've had some burnt ends from LC's and others that border on being too tough and too dry to enjoy, but these were firm but tender and moist enough to enjoy, though there was still plenty of smoke in them.

Next time I go back, I may just order a side of burnt ends and do a better analysis, but initial results were very promising.