I do fly DL a lot, but not loyal to them. I fly 300,000 miles per year. I am constantly learning new things as I added DL into the mix for this firs time in years, and it has been one new bad discovery after another. I cannot believe they cannot just add the segment onto your trip like every other airline in the world (for the most part). Hard to get over paying the highest amount of miles out of all the US carriers and then not being able to have any flexibility like you have with the others.
UA own metal to Asia - 65K Biz Class
AA to Asia - 60K Biz Class
Why am I not comparing apples to apples? DL awards the same amount of miles as AA/UA. EXACTLY the same!