Delta's current plan offers the unsecured creditors more than what Parker's plan offers. Parker was making his pitch directly to the unsecured creditors...the people, other than common stock shareholders, that usually don't recoup much during BK exit.
In any case, DAL & NWAs unsecured creditors will probably fare better than any other group of unsecured creditors in an airline BK case. USAir's creditors got less than .10 on the dollar, and UALs received about .25 I believe. With the current market and speculative interest, DAL & NWA creditors will do far better than .50...which is pretty good considering.