Does anyone have any recommendations regarding Business Class from New York to London with Oneworld?

Does anyone have any recommendations regarding Business Class from New York to London with Oneworld? BA or AA?

AA has the new seats on the B777-300ER 

I would fly on BA's JFK/LCY service if you had no preference for London ports.

For LHR, it's much of a muchness but I would choose AA - I like the ice-cream sundaes they serve. I also find BA's inflight entertainment questionable. AA has a Classics channel with films like Tootsie, Hello Dolly, Fiddler on the Roof, Yentle etc. etc. 

P.S: You think I like Barbara? No way...get out! LOL

AA's new 777-300s on this route are definitely the aircraft you should aim for out of JFK, or BA's 787 if Newark is convinent for you. There's not much between the two in terms of service, both are generally fine across the board, so it probably comes down to whichever flight is most convenient for you.

AA's new 777-300ERs are the best option (haven't flown but flew CX 777-300ER which is similarly good). JFK to LCY is good too (on BA), and Kuwait Airways isn't bad (though they only fly recliner seats...however you could really test it out).

BA