I think given our north american geography tan and woodland would be the most ideal options. Tan for prairies, woodland for everything else.
I went with Tiger Stripe - traditional style - because everything about me is animal-like. My girlfriend nicknamed me "cheetah"; my favorite job was working with animals; I've studied five animal chinese boxing; I call myself Grizzly online; and I can sneak up on my dog without waking him.
Taking Tiger Camo was not only predictable, it was necessary.
I didn't, and still don't care what the best camo is for what. I just took what I liked and thought looked coolest. I also like American style military stuff so... Tiger Camo + M4 = me nerding out in front of the mirror while my girl tries to dry her hair.
Everyone plays this game for different reasons and takes home different experiences so it really depends what
you want to get out of the game.
Are you looking for what works best? Or are you trying to mimic your favorite type of soldier?