All the camo is about the same its the fabric and the insulation inside the
garment that counts. You'll need early, mid and late season gear. Early season I use light weight cover alls or tee shirt, it depends, mid season I use mid weight (polyester insulation) cover alls and late season I wear gortex bibs and parka with thinsulate.

My season runs Sept 15 to Dec 31. Short seasons you'll need less.

sportsmansguide.com has some decent prices on gear and military stuff. Good luck with your first season.