Zach did a really good podcast with K.C. Walsh of Simms. He gets into a fair amount of information about Gore-Tex vs. Competitors if I remember correctly. It has been quite a while since I listened to it, but I think that might give you the information you want. After listening to that I decided that from now on I’m going with Gore-Tex and only Gore-Tex.
My wife has had the Freestones for several years. They have held up well. I have the Simms lightweights and they’ve held up really well too. I don’t feel you can go wrong with Simms – gore tex or not.