Not the LPP, it's pretty bulky but still my favorite of the warm ones. Down will pack smaller, I just like the water resistance, fit, and durability of the LPP.
I use a Arcteryx CERIUM SV. Warm, even in the Canadian rockies, light and packs small. That said, I am not a huge fan if it gets wet, so I have a bunch of over/under layer options depending on conditions, and what I can pack in.