So I ask, what do DL's pilots have that other airline pilots don't have?
Two things.
An effective union and a company who ineffectively deals with it.
Delta caves into ALPA every time because they know that they can take away or hold back benefits for the rest of the Delta employees who are non-union in order to pay for the extravagant pilot contracts they end up signing.
Delta pilots put their pants on the same way in the morning that other pilots do....it just takes a while longer to stuff their wallets into their back pockets.