I've got the Kuiu Super Down Pro and the weight to warmth is crazy! Very expensive, but it is a great piece of gear. They seem to run a little small, so if you get one, I would get one size larger then your normal size.
Feathered Friends Helios. I shredded mine within 24 hours pheasant hunting in briar. That's on me. The jacket is worth what I paid for it, and the patches add to the battle scarred look (or so I keep telling myself).