Club World on the 747-400 is configured 2-4-2 (A,B - D,E,F,G - J,K) downstairs and 2-2 upstairs (A,B - J,K).

A crucial question for Club World flyers is Upper Deck, or Lower Deck? There are pros and cons for both. 

Upper Deck: You have your own Club World cabin in effect. It is quiet, so it's good for night time flights for sleeping and in the window seats you have a side storage bin.

The downside is that you will be the last Club World passengers off the aircraft at your destination, and the overhead storage bins on a B747-400 are much smaller than those downstairs, so if you have a lot of luggage, you have to put it in the cupboard at the top of the stairs, meaning you will be the last of the last of CW in disembarking. Row 63 upstairs offers a lot of space near the exit as do the backwards facing 62 A and K.

Lower Deck: The front cabin of the two is generally better because it is smaller. Seats 12J and 12K have their fans because if the aircraft is disembarked from the front door, there's a chance to be among the first of Club World to disembark, which can make a difference if you fear a queue at immigration.

Further back, seats 20A and 20 K are good. They are backward facing seats and also have direct access to the aisle without you having to step over the feet of your neighbour.

Remember that if there are children in CW, they will be on the lower deck.