I have three down jackets - from thin to fat and puffy. Living in a state where it's freezing almost longer than it's above 32F, you can justify going a little over the top with the warm layers.
for the not so cold days I have a really light 800 fill north face Diez ($110 on Steep and cheap)
http://www.backcountry.com/the-north-fa ... ns-tnf5768" onclick="window.open(this.href);return false;
For possibly wet and overall not so friendly weather I have a Mammut Stratus synthetic fill belay jacket with hood (also a Steep and cheap steal)
http://www.ukclimbing.com/gear/review.php?id=849" onclick="window.open(this.href);return false;
and the really warm jacket is a Mountain Hardware sub zero with hood, but still thin enough to fit below my hardshell. It's warmer than the Mammut, not much heavier, and has a conduit fabric layer to help keep things dry.
http://www.backcountry.com/mountain-har ... acket-mens" onclick="window.open(this.href);return false;
the MHW Sub Zero was on Whitney in April - definitely the right amount of insulation for the temps then. I was looking at the Western Mountaineering jacket, but it seemed rather expensive for not a lot of features. Even the Marmot Greenland or the Patagonia Fitzroy seemed like a better choice at the time. when the MHW went on sale, I grabbed it. Like it a lot.
here with the last cup of hot coffee at the kilns before heading up to Telescope Peak in March
Funny that all jackets I have are black. I really don't like black, but when on sale, that seems to be the only color I can score.