Personally the wing down method is far superior to kicking off the drift at the end. It has already been mentioned that with this method you fly the aircraft all the way onto the runway leaving you better placed if a go around is necessary. There is also a big benefit IMHO, that is that the anemometer at some airfields can be as much as a 1000m or more from the threshold of the runway you are landing on which can mean that the wind information that you are given can be very different to that which you are about to experience. By using the wing down method (in a crosswind close to or above the demonstrated maximum) you already know (using wing down) if you can hold off the drift. If you run out of rudder when using wing down and you are drifting off the centerline then you know early on when a go around is easy. Of course I realise this statement does not cover wind speed and direction variation with the descent but if you are not holding the centerline at 100ft then you probably won't at touchdown.