Help me please?

I'm looking into getting new skis so if you could help that would be nice.

Here is my specs:
5'3" and growing (alot)
100 pounds
I ski Colorado so i need something for a little powder and park.
In the park i do rails and jibs 55% and jumps 45%.

The skis i was thinking about are liberty Lte's, Armada ar6's or alpha 2's, k2 domains, and surface no lifes.

I was also wondering if 170cm is too big for me considering my current skis are 150 cm and i could grow into 170's?

Thanks for your help newschoolers and i'm open to any suggestions from anyone.