I have seen much comment at rail sites (not everyone is THAT dyed in the wool) that Delta Airlines is the superior carrier amongst the "Big Four" (AA, DL, UA, WN). I've flown 'em but darned if I remember when. With so little flying I do nowadays (YTD 2 flights; 2 more booked) and that they don't "hub" at ORD, they are simply "out of mind". United goes anywhere I have occasion to go, so why bother with any others, especially since I know my way around their Terminal 1 at ORD - and not too much anywhere else. But enough here rave about Delta and United has had so many "PR" issues of late - especially involving "God's precious creature - dogs", I have to ask "what's so good about Delta"? Really, for the past four years I have flown to Munich during August. I've always gone Nonstop on United in Business. So if there some reason for a trip this year, I should "put up with change at Atlanta" to have a better in-flight experience? Just curious.