Replying to All mountain, carver, park ski?

Hey. The season is bout to start and I was wondering if you could help me out with ski choosing. I'm 16 y/o and a intermidiate-adv skier. I like to ski all over the mountain, powder, park, carving etc. I'm 65kg (145lbs) and 175cm (5ft 9).

I've been looking at the faction prodigy 1.0, 2.0 and the atomic bent chetler 100. Which of these skis would fit me best or do you guys have any other recommendations?

Which length would fit me best: 165 or 170?