Being last off the plane to immigration would be a killer for that idea for me: you can worry about arriving behind a jumbo full of passengers by bad luck but deliberately putting yourself at the back of a jumbo you are also on seems to be asking for trouble. Have spent too much of my life in immigration queues already, although e-passport readers both sides of the Atlantic are making this less of a problem I'll admit.

Also: I don't know the answer to this but in WT do they ask your meal choice if you have status and keep something aside for you / a bit like the galley ranking in CW? Or is it just "chicken or beef?" all the way down the plane?