Yeah, the Polartec Aircore stuff is nice. It's supposedly 20% warmer per weight than their last seasons regular micro fleece because of the inclusion of hollow fibers. I have the men's large PAC partial zip, 100 wt pull over "jacket" and like it. My wife has the boy's XL PAC fleece 200 weight hoody, full zip jacket which fits her nicely (she's curvy and a bit under 5' 10") and seems a bit female fitted almost. We also have some of their socks, which i have experimented with using as minimalist footwear wherein i glazed the bottom with silicone adhesive (plus there are built in little rubberish bumps that help with traction). And i have a pair of the 200wt gloves as well, which i like.
As far as fleece goes, i really like the Polartec Aircore stuff. Started a thread about it back in December and Konrad and i listed some weights. Off the top of my head, i believe the first jacket i mentioned was 9 oz in the size large, the 2nd was 16 oz and some change (that's with a hood, full zip, and pockets), and the gloves were 3.3 oz in medium i believe.