''AAA'' beef meat In the United States, according to the USDA (US Department of Agriculture), it is also called Choice Rating. In Canada, it's AAA. This grade comes from a youthful beef less than 30 months old with a meat marbling that is abundant to moderate, a little less than Prime beef meat.
Wagyu is definitely a premium beef product. It is different than Angus and other domestic breeds. Wagyu generally exhibits somewhat more marbling than USDA Prime with some subtle differences in the fat type and content, but to say that it is “better” than high quality Angus/Angus cross beef is a bit of a stretch.