Originally Posted by anabolism

To maximize the experience, I'd suggest trying to book the longest flights. In my view (feel free to disagree), LHR-M.E. is too short to enjoy the experience.

My suggestion would be EY out of LAX, since EY can be booked without error. They have a nice J product, and it's a 16-hour flight. If you have the miles, try for an EY F flight out of JFK; it's only 12 hours, but you get an Apartment, which is totally awesome. If you can manage to book QR out of LAX, that would be good, but no chance of Q-suite by then.