Experts from Food & Wine and Food Network suggest checking for:
This is generally considered the best choice. It comes from ribs 10-12 near the loin, contains less connective tissue, and is more tender.
To buy the best , you should ask for a from the rib primal section of the cow, specifically ribs 6 through 12. Despite the name, "prime rib" refers to the cut's location, not necessarily its USDA quality grade. Core Buying Recommendations
A "standing" rib roast includes the bones, which act as a natural roasting rack and can enhance flavor. Boneless cuts are easier to carve but may lose some moisture during cooking.
Found near the shoulder (ribs 6-9), this section is often larger and fattier. While slightly tougher, it offers a richer, beefier flavor for those who prefer more fat.