Originally Posted by DeltaFlyingProf
Does anyone know what the average age of DL's fleet is? How about NW or UA? I've always felt DL had an old fleet and about any other airline has better and newer airplanes. NW for example has great A330s with some of the best seats and IFEs. Instead we are stuck with 767 that I do not want to fly anymore

While, yes, some of DL's 767s are older...there are quite a few newer jets (see below just a few). How can you be certain that the 767 you will be on is "old" and inferior to any other aircraft?
For ex:
N1200K 1998
N1201P 1998
N1607B 2000
N1612T 2001
N1613B 2001
Finally, every US carrier has newer and older jets. Sure NW has newer A330s, but they have DC9s that were manufactured in 1965...