Winter sleeping bag recommendations?

I'll have to check out the Feathered Friends bags out, seems like they have a lot of happy customers. Also, i've been looking at the western mountaineering bags as they seem to be lighter than most.

Anyhow, thanks for the beta and keep it coming if anyone else has any suggestions

After renting a Feathered Friends bag a number of times I finally bought one about a month ago. I wish I hadn't because I just got an email that they're having an extremely rare sleeping bag sale! I wish I had waited . Though after a year and half a waiting I never saw a sale.

featheredfriends.com/sale/sale-sleeping-bags.html