Can anyone compare and contrast the experience of taking the BA vs. the AF concord? I.e. service, lounges, comfort on board, overall experience, atmospheer, etc. Obviously one goes to LHR and one goes to CDG. But if you were going to take one of them, mainly for the Concord experience, which one would you choose? I think I read that BA did some upgrades on the inside of its Concords...but perhaps AF has done the same. If I go AF, I would use DL miles, and otherwise would transfer miles from say SPG to a BA account to fly on BA.