I was trying to make this exact decision at the end of the summer. On Erik's suggestion I went with the Palisade. Incredible craftsmanship, the way it attaches to the sleeping pad made me have one of those "why didn't someone think of this sooner" moments, and it's cheaper.
No Knock to Nunatak, but I can't imagine any way you could improve on the Palisade unless you wanted it made out of a specialty fabric or have feet so big you need a custom foot-box.
I had mine made with 3 ounces of overfill and it got to me in CA same week as ordered. My only problem with it at this point is that it makes me want to order their 15* quilt as well.