Couldn't find this video for a while - http://edition.cnn.com/videos/international/2014/07/10/spc-business-traveller-london-new-york-a.cnn.
Cool!
It's a matter of opinion and taste! You ruled out British airways And for the same reason virgin Atlantic is ruled out so your question is between ua aa and dl IME the new aa (77w) in first is the best out there probably beating ba first too. As for business the new aa is great closely followed by dl
Why is VS out? He can book with DL with no YQ..
What is VS?