I had Sitka pants and jacket for cold weather hunting. Had being the operative word. I found that fancy camo is nice, but I bought a bunch of blowout Under Armor camo gear (pants and light jacket) from Bullseye North a while back. With a Merino base layer (I bought whatever Marks had on sale) and a fleece 1/4 zip I'll start running hot quickly enough to not need a $300 pair of pants (I think I bought both UA pieces for like $120?). I have enough room under the jacket for a thin puffer as well if I need and I'd rather peel layers and maintain a slightly cool body temp then sweat under a heap of expensive stuff.
Also, 80% of my hunting is for whitetails. Who cares what your camo looks like when it's covered by an orange vest - get what fits your budget. Anything that breaks up your silhouette will work. The stuff from Chinadian Tire is fine for most folks, plenty quiet, warm, and some of them are reversible. Get that stuff, on sale, with CT Money, and go hunt. It'll be fine!