LibTech vs LINE

Didn't get to finish. Sorry. I have been researching skis for the past week and have come up with three skis that I'm interested in. I'm 5'9" and weigh 61kg/135pounds, I'm an intermediate to advanced level skier and I'm looking to get into freestyle skiing but still want to be able to go all over the mountain including powder. I don't know auto much about everything that's needed in a ski to be a good freestyle/all mountain ski like the flex, width, length, etc. The skis I'm looking at are LibTech-Backwards, LINE-Honey Badger, and LINE-Chronic. I'll take any advice and views, thanks.

All of those skis listed are pure park skis. They will be good for learning park on but won't be as fun in variable conditions and 3 dimensional snow.

Generally, skis that are park/freestyle oriented but can still ski the whole mountain will have a 95-105 mm waist. I would recommend looking at a ski like the ar96, k2 poacher, kartel 98 or line blend.

What about the length? Is the sizing any different for choosing freestyle skis? And does it matter what binding it is?

I love look bindings they are the best

Get the K2 Poachers, Blend is okay and can be carved on groomers but doesn't really have any pop and is prone to getting chattery at mid-high speeds, meanwhile the Poacher is getting really positive feedback and supposedly RIPS while also being park-capable. Do you really want a twin-tip or would you be okay getting something directional?

I have directional skis at the moment and it's a no go for me. I've used twin tips in the past and I like the idea so I want to try and get into park.

If you're looking for an all mountain ski that can preform in powder as well as the park there is a few things to look at.
First is the profile. Make sure the ski has at least a little tip rocker. Rocker will help you stay afloat and keep your tips up above the snow in powder and make buttering in the park a bit easier.
Second is width. Pure park skis generally run 80mm-mid 90s. If you're looking for an all mountain/park blend of a ski i'd take a peek in the 95-105 range. This will give you good stability outside the park but still allow for good maneuverability in the park as well.
Last is flex. A soft ski (example would be the line blend) will give you a good platform for butters and a 'surfy' feel to the ski. While they may be fun, soft skis suffer when carving at speeds and going through choppy snow. Mid stiff skis are sort of the best of both worlds. They give a loose-ish feel but still have good stability and pop. A stiff ski will have good pop and be great at ripping around on groomers and busting through tracked snow but lose the loose feel of a softer ski.

Some skis to look at: Volkl Revolt 95, Line SFB, Line Blend, K2 Poacher, Icelantic Nomad 95 or 105, ON3P Kartel 98, etc.

UFO 100 if you want some libtechs. spotted a dude riding them a couple weeks ago. seem like a pretty fun ski