For years I have used poly pro and polyester for a base layer. I even have some of the under-armor stuff but haven't been real impressed with its ability to wick. Personally I think that the UA stuff is over-rated AND over-priced. I am considering trying either some Patagonia stuff (hate to because they are anti-hunters) or a base layer from another retailer made from merino wool. I need something that is going to wick exceptionally well, dry quickly AND keep me warm. Any suggestions?
Also, what layering techniques work best for you?