I have a few questions in the opposite direction. "I am pondering switching my 200K EQM/yr from CO to another carrier such as DL?". My novice DL questions are the following:

*Does DL offer SWUs, I have never heard of it but comparing UA to DL this makes a difference to me.
*How is the overall DL product when traveling internationally? I hear it doesnt match COs BF product but is coach descent enough for the 7 hr TATL flights?
*Does DL offer free club access for high mileage travelers/elites?
*Does DL EUA for Intl flights for its premium travelers like plats on Y or H fares? Or do they only do Operational Upgrades such as CO?
*How full are their aircraft going over the big pond? CO's have been very full lately on those routes.
*Is DL planning on returning any ammeneties (such as Meal Services) to any of their flights as they are becoming more profitable?
*Do DL Intl flights in Coach offer free alcoholic drinks?

Personally I am considering UAL over DL but the newer (last 6 months) DL image intrigues me as I think they are moving in the right direction with their expanded Euro flights.