Camo is "area" specific...one pattern tends to work well in one area during a particular season but not so much in a different season and/or area. One pattern may work well in Spring but not Fall. So what I've done is buy inexpensive hankerchiefs with all the various standard patterns and go to some of my favorite spots during different times of the year and then string them out and walk around 360 and see what works/doesn't work.
This eliminated most of the patterns immedately while some show promise and one didn't stand out at all making it the leader! I'm still experimenting...but to be perfectly honest this is what I found that works the best:
1. Natural Gear is the best "all purpose" blending pattern on the market - head 'n shoulders above the rest. This patterned worked well in the dense rain forest of the Pac North Wet and even works better in the High Desert east of the mountains. YMMV depending upon your ecosystem but I would guess their two patterns work work well. Buy a hanky or something cheap and try it!
2. Wearing Wilderness Friendly colors in constrasting combos works as well or better than most if not all the camo pattern's on the market - i.e, wear charchoal grey wool pants with loden green shirt and similar vest/jacket. One time my buddy wore navy blue 5.11 pants with a OD green shirt and I lost him in the foliage immediately. Earth tone brown, green, small amounts of black for 3D depth/shadow, or other related colors work just as well as camo when worn in contrasting combos. Also doesn't draw attention to oneself as easily when in an urban situation. Also anything that breaks up your human outline is more important than the pattern. Boonie hats do a great job of disrupting the shape and shilo-wet of a human face/head and thus why they're used in military & SWAT applications.
3. Washing your clothes with a non-phosporus soap will make the biggest difference as non-human animials can see a phosporus glow when we use standard laundry soap - makes a huge difference! It is like turning on a flashlight halo around your body for deer, elk, bear etc.
4. Bath/shampoo in scent removing soaps helps more than camo. They tend to smell you before they see you.
5. Cut a small brow off a live tree and put your hunting clothes (all of them) inside a bag with this brow to prevent human scent contamination and to scent "season" your clothes with something common to the critters before you put on at your car in the woods.
Hope this helps but, ah what the heck do I know?