British Airways / American Airlines are having a nice sale from Los Angeles to New Delhi via London with lie flat seats the whole way, you can select AA flights from LAX-LHR-LAX which would have a better hard product.
American Airlines flyers would obtain 28941 EQMs 4824 EQDs while Executive Platinum members would obtain 53056 RDMs, Platinum Pro 43412 RDMs, Platinum 38588 RDMs, Gold 33765 RDMs, Base Members 24118 RDMs
Here are some of our reports with American Airlines on their Boeing 777s RDU to LHR and London to New York
American Airlines 777 Business Class
British Airways Airbus 350
British Airways Boeing 777
British Airways Boeing 787