A ski doesnt really know how tall you are ,there are some advantages in terms of more leverage if you are taller but I would go with what the mfger recommends for your weight,longer or shorter depending on ability [HTML_REMOVED] where you wana mostly ski .The length thing was what they used a very long time ago
IMO its really about either being strong enough or having the weight to to decamber the ski when you jump on it to make the turn .Typiclly A ski in the 190cm range is going to need alot of weight or strength to turn ,might be ok on big open slopes but if you tree ski harder to make the turns
again I have no idea how the park thing plays in but I understand park skis are softer ,shorter and the optimum binding placement is different for park than pow?
Pretty much.
Long skis are overrated.
Some guys are just too into long skis and high dins. Last time I checked, this didn't make you a better skier, or any cooler.
Ski technology has gotten significantly better in the last 5-10 years, so there's no need for stupidly long skis anymore.
As for ski softness, this makes a HUGE difference, but if you're just starting out, a soft ski won't hurt. It's easier to move around anyways…