Where's the (store-bought) beef?
Bel Air Prime Meat sells prime, aged beef that is terrific. They have rib-eye steaks that better than almost every great restaurant in town.
Chalet Gourmet was the best supermarket. Now a Bristol Farms and not nearly as good (Fairfax and Sunset), they still have some of their old, skilled butchers.
Of course, a few weeks ago one of the staff people couldn't convert ounces to pounds (Yikes! it isn't even a conversion!) so who knows what will happen.
Both of the butchers at Farmer's Market are good and will cut to order. I suggest going to the one next to Bob's doughnuts (the name?).
I think the Harvey Guss place on Olympic is closed.
Marconda's Meat Market at the farmer's market has some of the best beef I've found. they get true prime, although not aged, they will order in advance and age if you buy a whole short loin. Their lamb is prime and aged (you can see them hanging in the back.) It's the best retail I've found.
The best beef at the best price I know of is from Harvey Guss Meats on Ogden at Olympic.
They sell only prime beef that is dry aged for 21 days and they let the public but it.
You must order a day in advance and pick up your order before 1:30 p.m. Their telephone is (323)937-4622.
Try the Bristol Farms that just opened where Chasen's used to be at Beverly Blvd. and Doheny. I shop one of their other stores and find the meat to be superior to what the other stores carry. They also have Manning's beef. Tusquella's at Farmer's Market used to be good, but I haven't shopped there in many years, so can't attest to the quality.