My husband is a prime rib lover and other than Gibson's in Chicago, his favorite is Houston's. I think he likes it because of the generous portion and the fact there seems to be less fat (not counting the fat that's marbled in that you can't really see). He's eaten prime rib all over the country, to be honest. Houston's is still way up there. We've never been to Salt Lick but don't live too far from it. Will have to try the Sunday night special.
I've heard from several people that the Salt Lick has a prime rib dinner only on Sundays. I'm not a fan of their BBQ, but I would definitely like to try the prime rib sometime (the people raving to me about the prime rib were also not fans of their BBQ). I've had it at Houston's and it was good (this would be about 7 years ago). I know they also serve it at Perry's, and I imagine that would be quite good.
lambert's dinner menu is really pricey and gets some bad press on this board, so i humbly suggest the totally-worth-it $26 all you can eat brunch menu.
in addition to as much freshly carved niman ranch prime rib as you can stand, there are all sorts of other deliciousness you can enjoy.
when we went, i particularly enjoyed, in no specific order:
caviar deviled eggs
brioche french toast
cheddar and roasted poblano grits
brown sugar & coffee rubbed brisket
feast your eyes here: http://lambertsaustin.com/new/images/...
our brunches have always been gut-busting and the service is not intrusive.
it's also nice to walk around the 2nd street area after and look at expensive stuff i will almost never buy.
i think it is a way better deal/experience compared to their dinners.