I'm not familiar with the Way Around variation - nor does it come in a (very quick) search.
That said, I think using multiple purples would make a much more interesting quilt.
I personally find that just two fabrics, repeated over and over and over in the same block across an entire quilt, to be not particularly interesting.
Look at all these variations:
https://www.google.com/search?q=wind...quilt+pattern\
I did like the on-point setting in this one - (and it's purple):
http://www.ozquilts.com.au/images/de...nding-ways.jpg