I think Island Delight is the one I have seen the most of second hand. There was a lady at the toy fair a while back and she had two or three of them. Maybe one will appear in your life soon, Carrehz...
I haven't ever seen a loose Cloud Climber though (mine is still MIB, I never got around to opening her and now I wouldn't because they're no longer produced). Weird now I think about it. Maybe Island Delight was just that much more popular with kids??
Cloud Climber's colouring is quite like Glory which is nice