The loin or "backstrap" is considered the best "cut". They are the muscles that paralel and lie along the spinal column on the outside and inside of the ribs. Please note these are normally cut and packaged with a thin, silvery colored membrane still attached, and this membrane should be carefully slice off, intact, and kept for use as sewing sinew. Otherwise is simply cooks into gristle. If you have steaks, be sure that the butcher didn't leave in a small circle of bone with possibly a piece of marrow. If it was left, remove before grilling or frying.
Venison is very lean compared to farm raised meat, even when that farm raised meat is grass fed. So, venison is eaten rare, or in stews/chili, or with fat added during the cooking process, as otherwise it will become very dry and very tough. Venison fat is not palatable to modern, civilized folks, so when adding fat one usually uses beef or pork fat. Adding fat is something for an additional post, as it is much more than simply laying a few slices of bacon on the top of a roast and hoping for the best. :shocked2:
As to why would one marinate venison, the reasons are simple. As a wild meat, the age of the animal, and the diet of the animal, were uncontrolled during its life. Thus the flavor and tenderness of the animal varies with each beast. In some cases the meat can have odd flavors. Also, depending on who processed the meat, and if they paid attention to removal of bloody bits, that too can taint the meat with an odd flavor. So sometimes a meat marinade will help to cover those flavors, and some marinades will tenderize the meat as well. Venison does not all taste the same depending on what the animal ate in its lifetime. Oh, btw, unless one doesn't use anything when cooking or eating the venison, including omitting salt, using salt is a flavor changing ingredient used to improve the flavor of meat. Grilling is also done to improve the flavor of the meat. :haha: So you may find that salt alone works for you, or you may find you like something in addition to salt, such as a specific method of cooking or a marinade.
LD