Two ultra-old-school places around town deserve a deep bow ...

:
* Pacific Dining Car, downtown L.A. (1921): The three times I've been there for my husband's business dinners, I'm faced with this no-brainer choice, which the several generals of PDC chefs have perfected since the place first opened 87 years ago. Pricey, but worth every penny.
Welcome To Pacific Dining Car Restaurant * Lawry's The Prime Rib (1938): A few crabby detractors call this seventysomething classic dated and tired, but are you gonna argue with satisfied guests coming from all over the globe -- or with the happy "Beef Bowl" contestants who descend upon the place before every Rose Bowl?
:: Lawry's Restaurant ::
There's also a sort-of "old schooler" in northern Orange County that does prime rib at its droolworthy best:
* Rembrandt's Beautiful Food (1969): A personal favorite spot of yours truly and her better half for about 13 years, the chefs prepare prime rib right: flavorful and succulent, with a divinely salty crust that makes me hungry just thinking about it.
Rembrandts Beautiful Food / the official site
Jan/GSG