Bankrupt Stock

[Old School 737]

I have read some of the Delta posts and people are talking about how they have to save the company because the new stock will be worth too much. I find this interesting since I have watched the new US Air stock and the New United stock go way up since being released. If Delta and Northwest come out of bankrupt status do most people think the stock will perform the same as the previous two? I just don't understand why they have performed as well as they have because the earnings for United has not come out yet and I believe and their new business model has them predicting oil at a much lower rate that it is currently trading at. The new US Air lost money last year that was expected but lately they came out and said it may talke longer to become profiable.