In all of the years that I have grown the Ae Ae I have had less then 3% of the pups that were all white. I have never had a green pup and a normal pup will remain variegated. But about 5 years I had a strange pup that had leaves that had variegation of dark green and white with little mixing and no light green (I'm trying to find the pics). When it produced one all green leaf, I through it out.
Go to my site and scroll down and check out the ones that have red script, they will give you some answers. Note the size of the fruit stalk that was all produced from plants in full sun
http://togofcoralgables.com/AeAebananas.aspx