josh ..
there are basically 2 types of softshells
woven softshells are ones made of tightly woven and treated DWR fabric … they are usually cheaper and breath much better … the downside is that they are usually less "warm" and less weather resistance … on the other hand due to the single layer contruction they tend to dry much faster as well …
membrane softshells are laminated with another layer … they tend to be more expensive and breathe less well … some people feel they are "warmer" and they tend to have better weather resistance, they also tend to take longer to dry … examples include polartec powershield and gore windstopper
most of the softshell pants you see on sale these days are woven, especially the cheaper ones … note that they always exactly cheaper as dead bird gamma lt/ar can run you $150+ … while those MH or NF ones you buy on special at an outlet store which actually work just as well can costs less than $50 …
i only use woven softshell pants myself for price and breathability reasons … even then there are different weights which will affect both the warmth and the durability …
i supposed i may use a membrane softshell if i was doing something like skiing where id wipe out constantly … or in very low temps here i wanted more "warmth" … but even then you could simply wear some heavier long johns under yr woven softshells
my recommendations is that
1. you decide if you want pure winter softshells, or something you can use in fall and summer alpine as well …
2. if you decide the former pick up some heavier woven or membrane softshells … if the latter pick up some lighter ones and use long johns with em in winter
3. once youve decided the type (after testing both of course) … bring you gear and try it on in the store … softshell pants that feel great in yr sneakers may feel differently with yr winter boots and glacier harness on …
4. then pick the one that fits best at the price you want…. hopefully you wont be a short lazy azz like me … and be forced to buy dead bird gamma ARs because no one else makes a short version that fits properly … i wish i fit the "standard" model size sometimes =(
either way if yr doing anything remotely abrasive softshell pants are the way to go … and just patch up the holes youll put in em eventually … youll destroy em eventually if you have a roaring good time ;)