I have the kuiu yukon set, stone glacier jacket and the kuiu kutana pants, all of them work well. I had 2 sets of the Yukon but sold one to get a lighter set just for sheep and goat hunts, I started with the stone glacier m5 set, the jacket is really really nice but the pants didn’t fit well so I returned them and got the kuiu kutana.
when I’m moose hunting, im generally wearing my Simms waders so those are my twin pants and any rain jacket will do really.
the kuiu Yukon is good stuff but for backpacking specific rain gear I might look at the chugach or kutana or the stone glacier stuff.
I have no experience with Sitka but know lots of guys who use it and love it, I’d have no problem buying Sitka sight unseen.