For colder days, there's no reason to splurge for 3 layer Gore or Gore Pro. 2 layer and 3 layer use the same membrane, but the protective layer on the inside portion of the garment is different (2 layer uses a separate sewn in liner, 3 layer laminates the protective layer to the membrane and outer layer. Lamination is expensive, so if you're sewing in a liner regardless with an insulated pant, the bonded interior layer in redundant. Likewise, Pro's main benefit over the standard "Goretex Performance" is breathability, which is less important for a cold temp pant).
So looking at the options for 2 layer, insulated pants, you'll want to decide:
-How much waterproofing do you want? Some of the cheaper pants go with a generic PU membrane, which is either thick, waterproof, and less breathable, or thin, approaches the breathe of Goretex or eVent, but only repels water to 10k mm hydrostatic pressure. (Evo requires gear to be waterproof to 5k to be called waterproof. I'd say 10k = basic, 15k = good, 20k = better, 25k and up = best in class). 15k would be my bare min recommendation for the PNW, but you can get away with less if you're skiing primarily in places less... soupy.
-How durable do you want the face fabric to be? Nylon is more durable than polyester, and different manufacturers will increase the denier (think thread count, more is thicker & more durable), or will use a more durable weave pattern (like twill or a double weave) that might increase the costs a bit.
Patagonia Powder Bowl would be pretty high on my list. They use more polyester for environmental reasons (lower impact to produce, a lot easier to recycle), but then they just jack up the denier, so it's just as durable as the 40D nylon on the market. They also have vents if you end up getting toasty throughout the day. (Armada Bleekers have a really similar construction). The Arcteryx Sabre pants are a super lightly insulated option. It's a 3 layer pant, but the lining that's bonded on the inside is brushed & fleecy. Norrona Lofoten Gore Insulated Pants are a rare unicorn with a 2-layer, Gore Pro construction.
Those are probably on the "best" side of the spectrum in terms of weatherproofing (>20k waterproofing) & durability, but if you've got room to scale back on either of those, you could save a little cash in the meantime.