Honestly, my go to is the Dakota hoody. It keeps the wind and rain out and is surprisingly warm. This is my go to until November. If you need more water protection, go with the Hudson jacket.
If you look around, you can find good deals on sitka products. My local Scheel's will usually run a 30% off sale prior to waterfowl season. Or, you could look into the sitka pro program. If you qualify, you'll get access to special pricing. Finally, keep an eye on the waterfowl forums or rokslide and you'll find something at reasonable price. If I see any deals, I'll post them below.