Richard,
This isn't what you are asking for, but I was recently on the same quest as you are… to find a down jacket for the PCT. I considered many of the same options as you are considering right now.
After quite a lot of deliberation, I decided on none of them, opting instead to use a Patagonia R2 fleece (12.5oz) that I already own as my primary insulation piece.
I am well aware that it is not nearly as warm as a comparable down jacket, and that it weighs a few ounces more to boot, but a few things tipped the balance in favor of it:
1) Layering all the clothing that I already plan on taking on the PCT and adding on the R2 fleece kept me warm sitting down outside in 20 degree weather (while it was snowing and slightly breezy, by the way). My layers were: Capilene 2 crew top baselayer, polyester t-shirt, R2 fleece, and hooded windshell, along with appropriate head and leg insulation. I figure I will never be sitting out idly in weather colder than 20 degrees fahrenheit on a PCT thru hike.
2) The fleece can be laundered readily and repeatedly without much fuss, in contrast to down (something that I think will be very important on a long trip like the PCT).
3) I already had the R2 fleece (always a bonus).
4) The fleece is a more versatile piece that can be used while active, not just while in camp.
5) I don't have to worry as much about getting my clothing insulation wet as I would with down (more important in Washington).
I'm not trying to dissuade you from getting a down jacket– they sure are nice, but just know that there are lots of different options out there, and layering even thin layers can drastically add more warmth to your clothing system then you might otherwise expect.
Anyway, good luck with your search.
Of the jackets you mentioned, I tried on the Mountain Hardwear Ghost Whisperer and really liked it.
Unfortunately you can't help but feel like you are paying a whole of money lot for very little down with these UL down jackets. Most of the weight is in the shell, and since I'm already carry a wind shell in my kit, simply layering in my fleece just started to make more and more sense…