Patagonia makes good stuff. I use the cap3 base layers all the time during the winter. I find the tops extremely comfortable and wear them around the house all the time. I have found no issues with durability. I have not tried the cap1 stuff, but am in the market for some right now and will be getting some soon (top and bottoms). As far as wool goes, their wool layers are great as well, I have tried them but people keep giving me the capilene during holidays and I have liked them so much I stuck with them. The wool tops are great too and I would recommend them too, I just don't have quite as much experience with them.

I love smartwool socks but have to admit I have not tried their base layers, they are probably great as well.

-JR