Last edited by OutandBack; 01-04-2011 at 20:32.
I have both--got the Yeti with the WBBB from Brandon, then couldn't resist the Black Friday sale prices for the 3S Crowsnest/Phoenix. They are both excellent underquilts. The Yeti is lighter, a bit narrower and shorter, and of course not as lofty. Both have kept me warm sleeping in an unheated bedroom in my hammock in Jan. I suspect that the Yeti may fit the WBBB a bit better, but both work fine. It may come down to how low, temp wise, you want to go. We're really lucky to have such a great cottage industry making such fantastic products