If you wouldn't mind, you'd be a perfect candidate to test our gear sorter thing. Its still pretty beta, and there isn't a ton of reviews in there yet but I'd be curious to hear what it recommends.
As well, I moved this thread into Gear Talk. Some of the people in here are going to be a lot more knowledgeable than the general population of Ski Gabber.
My recommendation to you is to try out a few pairs at a demo day or something. When I'm on the big stuff I like to wear stiff boots and use charging skis. However in the park, I absolutely hate the stiffness. Especially if you're with your 6 year old, you might find yourself getting a pair of old super soft park boots, and wanting to butter your brains out. Something super soft and springy like the Al Dente, the Travelling Circus, the J Skis or a few others might be a blast when you're in the park.
Give it a try and let me know what it says!
"Wu-Tang is for the Children."
"Thats the thing about skiing, when it looks good, it looks good, when it looks bad, it looks like a model airplane hitting a ceiling fan."
Check out what I ride these days here - http://bit.ly/19DCx96