Fun fact. You can see that W is kind of the oddball when looking at the Braille alphabet. XYZ used to align with MNO, until W was added as the 23th letter, which breaks the symmetry.

⠁⠃⠉⠙⠑⠋⠛⠓⠊⠚ (abcdefghij)

⠅⠇⠍⠝⠕⠏⠟⠗⠎⠞ (klmnopqrst)

⠥⠧⠺⠭⠽⠵ (uvwxyz)