Of these three steaks the Hanger Steak is probably the least known. In part this is because this steak finds its way into restaurants and butcher's barbecues more than it does the display case. You will probably have to ask for this steak. The hanger steak, also known as the butcher's steak or hanging tenderloin, is a thick, tough, portion of the diaphragm. Of these three steaks this is probably the least desirable. It doesn't tend to have the same flavor as the other two and can be just too tough for even the best marinade to deal with. However, Hanger Steaks have become increasingly popular in many restaurants, particularly French Bistros. This is due to the unique flavor. Prepared right, this is a great steak.
The Skirt Steak is probably the best of the three. The skirt has more fat and there for more flavor and grills up juicier. This steak is of course the original steak of Fajitas and because of that tends to disappear quickly as it gets bought up by restaurants. The skirt steak is however, worth the search. Find a good butcher and he’ll set you up. With skirt steaks you want to remove any traces of the membrane that surrounds it. Once cooked this will be too tough to get through.