speaking from a fair amount of personal experience flying the Islander in a number of years of continual crosswinds I always used the crab approach up until the last hundred meters or so when I would go wing down. The reason for switching was simple, passenger comfort for most of the approach followed by a controlled touchdown where you want with little unwanted drift at the speed I desired pretty much every time.
Forgetting demonstrated limits on the aircraft this always means that ahead of touch down you know if the aircraft is handling the crosswind OK and that you are not going to get an undue sideways load on the gear on landing.
If your runway is nice and long then it probably doesn't matter which method you are using............however if it is 300 meters of grass with 20 kts across there is only one method for me.
