I have heard alot of negative stories about these programs-- posting last miles after numerous phone calls, etc.

However, if I sign up for four or five dining programs and register the same credit card # with all of them, will I get miles for all the airlines' programs??

If not, how do they decide which airline miles I would get?

Do all the programs have the same resturants or do they vary? I know the Northwest and American programs sounded like the same exact resturants.