Welcome...
Have fun. I was thinking about WL, but I went with a Moderate instead. We only get a couple of days in Orlando during our trip, so we won't be at the hotel much. I am actually thinking of downgrading to POP, since we might actually spend two days in the Parks this time.
Three girls, sounds like fun! My DD2 loved the parks six months ago. It was her second birthday.
Another one on the way have fun. I've always heard the transition from 1-2 is the hardest, after that it's all gravy. We're a confirmed one child family. I don't know how you do it.