Qatar
Qatar airways, offer a great service from London to most of the eastern world..... via Doha.
I am based in Dubai, and regret to say both the airline that can not be mentioned, and that one that can, do not match QATAR service.
I travel to from London, as well as many Mid and far east destinations, and use Qater if on the route, even with the hour or so in Doha...great lounges.
Only complaint the T4 at LHR does not have third party lounges, the new Qater lounge is fantastic...but no third party lounge.......