Pearlpilot,

I was just a line pilot, not an instructor, but FWIW here are some thoughts on the matter:

1. On an instrument approach, you don't align the airplane until you see the runway, which could be at a very low altitude, so why not do it that way all the time?

2. Varying winds down final would require constant rudder inputs with a wing-low procedure. This is uncomfortable for those riding near the tail.

3. Perfect alignment at touchdown is rare no matter which technique is used. The gear is quite strong, and landing in a small crab is preferable to being off centerline.