Glad to hear your comments. Can you confirm that the quality of meat is probably the best in a grocery store? One item that I have been buying lately is Amana Natural beef which uses the minimal amount of "additions" to get it to market.
The best meat you'll ever get is probably from a local meat locker but they all probably have their own practices of what they will actually sell you. Luckily my wife's family sends several home raised steers to the locker every year so every 2 years we buy a 1/4 of beef and usually wind up buying some extra steaks since you only get so much of each and I'd rather have more steaks than roasts. The ground beef is much better too, seems leaner and tastes better to me at least. The ground beef you get at the store is usually a mix of beef trimmings left over from what they cut and some pre-ground beef so their 80/85/90% lean etc. isn't usually that consistent based on what kind of trim they have in that tub.
As for pork, I don't really think there is much difference between stores, just have to be careful picking out stuff that looks fresh and is fairly lean.
One thing I will warn you on though are the seasoned "manager's special" deals you may see sometimes where they have usually some kind of BBQ or all purpose seasoning already on the meat usually at a discount price. A lot of times that is older meat about to go past shelf life and the season is covering up the color that shows that the meat is not exactly as fresh as the stuff that was just cut that day. Especially with pork, its covering up color that is looking more green than pink or with beef browning instead of red. It's not always that way, I know they sometimes season just for variety but take a close look before you buy something and look at the date on the price tag because usually if its seasoned and cheaper than the regular unseasoned cut it's older meat.