It's the one that suits you, makes sense, comes more naturally for whatever type of aircraft.
I do wonder whether how much is dogma - the way you were initially trained forming a strong bias towards one method over others.
Guidance is not a strong point in light aircraft POH's but the Boeing flight crew training manual discusses three main and approved methods - all three of which have been mentioned at some point in this thread. Some airlines give a standardised preference for Chuck's favoured method but that does look a bit weak during an autoland on, say, a 757 when Boeing's autopilot system happily puts you in a slip late in the approach.
Personally I use the seat belt method.
I get my belly on the center line and manipulate the controls in any way needed to ensure my paunch remains on that extended line.
The seat belt ensures the rest of the aircraft follows.
Wing down or crab - it works every time
Rob