I'm delta Gold and like Delta and its international offerings. Unlike many others my rare AF experiences have all been good. Still forcing me to buy grossly over priced tickets to get an upgrade internationally makes me with I had better alternatives. I prefer *A and have points and status with US Air.

I'd at best give Skyteam a C. For domestic travel though Delta gets a B/B- from me. If its companion upgrade program was any better, I would give it a B+/A-. Unfortunately, that program is about as bad as it can be.