Ok, so whats the answer? Lots of choices, has to be the perfect single choice right? I know, kidding. Im in the same boat.
Had a Yukon set several years ago, used for one moose hunt, decided to loose about 40% of myself so sold them, then went with the Chugach set that I have used the last three years--albeit the first sheep hunt got a decent cut in the ass-end, and then another on last years sheep hunt. They fared three mountain moose hunts well though.
I want to pick up a new set and am seriously scratching my head. Love, love, love how comfortable, light, packable the Chugach are and honestly kept me as dry as anything I could have expected, including my ArcTeryx Beta AR (which I also love but don't hunt in it as its louder than my darn sleeping pad)--but really want something that is at least a little bit more durable. I'm still a bigger guy carrying more muscle than most folks hiking the miles I do, bring that up solely as a major point--i'm a freaking heater. As I climb I absolutely generate a ton of heat. The big pit zips and double ended zips on the Kuiu help dump heat--but whatever I go with MUST BE BREATHABLE.
I had all but sold myself on the Kutana for this year, but if it isn't breathing better than the tests noted above, I have to think about something else. May have to give the Stone Glacier a try, or just bite the bullet and carry the heavier Yukon pants with a chugach jacket.
Someone above had asked about wearing when it wasn't raining--I will agree with a couple of the responses that I typically don't wear raingear when it isn't raining--I would normally overheat. BUT on both of the last two sheep hunts we had days of incredible winds and low temps where I was simply wearing every last thing I had. So for wind protection, they work well, but the chugach set is very light/thin, has zero insulation properties, so it really would be solely rain/wind protection and thats it.
Would like to hear more from folks who have used the Kutana and SG M5 raingear.