686 is one of the better brands as far as performance and durability go. I have a pair of their Smarty Cargo pants and they're sick! they have a 15k/15k rating. You should look for something with this good of rating or better if possible. Gore-tex is the best if you can get that but it's really expensive. I can't speak of Burton personally but I've heard they make some good outerwear, especially their higher end stuff.
Jackets you don't need quite as high of a waterproof rating. Just get something that has the features you want, style you want, and good durability.
I don't have much experience with different types of gloves but I got a pair of Dakine Cobra's last year and I absolutely love them! My hands only got cold on the coldest days and I wore them without a liner so if you wear a liner you'll be fine. Also, water never got in. The only dampness they ever got was sweat but still not much. They have leather palms also which is nice.