Originally Posted by
supergrandslam
Again, both AA and UA offer EC equivalent to their elites.
I can't find any reason for flying DL.
Some people don't have a choice either because of home airport location or corporate travel arrangements @:-)
For those who need to (or choose to - they do have a good hard and soft product onboard) fly Delta MRing for the reasons stated in this thread could make sense (better access to seating, more miles earned at higher status, etc.)