You are evil. I love this set, but I cannot choose just one as a favourite.
They're another set the UK didn't have in real life but in the comics they appeared, so they are kind of mythical and special still to me.
We had Confetti of course, but maybe she's my least favourite. Although I love her UK box.
I guess it's probably one of the unicorns, because I liked them as a kid, but I always think of Flutterbye and the story when she hurts her wing and is rescued by the spider, even though she finds them scary...