You may want to check out Cabelas Insulator Jacket it has all the things you are asking for hood, packability and warmth.

here is the product number.
Trans Alaska Insulator Jacket, Item# 9IS-922874

I don't have this model but more then a few people are very pleased with it. I have the pataognia M steath down jacket and it does what i need it to but it is a higher costing piece.