Austin Hunter
FNG
For extreme wet weather I use a Helly Hansen guide coat. Hard to beat. Nope, it doesn't pack down well, but handles the water. The discontinued Kuiu rain gear is the Ultra NX line. Fantastic stuff when used correctly - ultra light and actually was rated higher on water resistance than all of Kuiu's current gear. Very breathable. It's just not durable. I take that on every hunt as well - it's great in snow and wind (used in NZ Alps). And if you put in on during a downpour with some sort of water resistant jacket underneath - like a DCS guide or Axis (I have both) - you will be fine. Heck, my favorite jacket for cold and rain is my Fjallraven Greenland Winter jacket, but not for the mountains. And it's too pretty to hunt in anyway.