Being a gear whore, this thread is fun. The OP has gotten some solid advice! As if it's needed, here's my take...
I've used multiple pieces of KUIU, Sitka, FL, Kryptek as well as Smartwool and a couple of others. I don't care much about camo patterns. If I did, Kryptek Highlander would win and KUIU Vias would be second. I've found that everyday wear gravitates toward FL Sweaters and Sitka softshell vests. Sitka Timberline pants definitely have more stretch than my KUIU. A personal issue with pants I never would have thought of is that carrying a knife on a pocket clip is not very handy with zippered upper pockets. KUIU Attack and Pro pants are not zippered. KUIU's NewYarn merino isn't as comfortable as their older stuff. Smartwool medium-weight merino is the most comfortable stuff I've ever tried but I can wear a top out in a couple of backpack hunts. (The hip belt just wears through it.) Still looking for the best merino baselayer. I'll have to try some of the suggestions you've gotten here.
That all said, when it comes time to go on hunts, KUIU outer layers almost always get the nod. The pants are tough. They dry quickly. (As in overnight in the tent with no heat.) Their down is amazing. (Buy at least one size up on coats.) And, finally, KUIU's rain gear breathability is nothing short of incredible. I don't perspire when hiking; I sweat! Their stuff will move some vapor! Buy the right weight of jacket for your conditions, but it all works from the lightest stuff I carry for emergencies to the heavier stuff for brush and horseback hunts. The stuff is great.
Oh, check out Schnee's Beartooth boots. If they fit and feel good, they are light and tough enough for most hunts.
Sorry if it's TMI. Like I said, I love gear! Good luck!