haha..well we have said my wife or my husband but generally when introducing him i say his name. I often forget my ring as I have been switching rings as my acutal wedding ring doesn't fit well at the moment. nor do most of my rings, so I just pick a big one and walk out the door. But quite often I've not got one on. As I really don't give two hoots who knows i am married or not, it has never really bothered me. However when I go out to london I have always worn my ring just to keep the guys away and so I can make excuses why I don't want to dance with them other than saying " no thanks you smell really bad and I saw you dancing with that other girl and you were really really bad dancer too, laters." =-)
I do like being called Mrs. xxxxxxxxxxxx it means something to me. The OWERSHIP thing has never come into my mind as my OH knows better than that. It depends on how you see marriage I think. If it is a partnership based on friendship and a mutual understanding, and wishes to grow old and have a family, then no owership would be implied. But if you had no realy choice or it was an obligation then I could see how it feel like ownership. But I do agree that "the wife" normally has a certain stigma attached to it when said. TO me it is like calling a woman a "broad, chick, old lady" etc.
but that is just my opinion, which you all know I give all to freely! *LOL*