"bananananana... Nanny Ogg knew how to start spelling banana, she just didn't know when to stop."
Well seeing as I have supplied two quotes and this is going along like an essay, let me share my tenuous knowledge of the two types of banana sucker.This above photo, is, I believe, a water sucker. The leaves are broad from a young age because it is not getting its nutrients from the mother plant, and is having to manufacture its own.
Whereas this little treasure, a sword sucker, is sucking the life out of its mother, and doesn't need to develop broad leaves just yet. I guess it will get them after its mother kicks it out. Anyway, although the water sucker is the prettier of the two, the sword sucker is the one to pick, having been nurtured by its mother, it will grow up bigger, stronger and produce more fruit.
I'm am so sure that there is some sort of lesson there.