The only true camo pattern I own is a lightweight outfit I bought for turkey hunting. I think it is Realtree AP. I wear it once in awhile for very early season deer hunting, and it works well.
Usually, I wear plaids or a muted solid. I have a pair of moleskin pants and a shirt too match. They are extremely quiet, sort of an olive drab color. 90% of the time, though, I wear plaid. Either wool or cotton flannel(flannel only on hot days).
In this picture I'm wearing solid OD moleskin pants and a Timber Ghost plaid jacket. I look at camouflage as a concept, not a pattern.
Which is not to disparage commercial camouflage. I will be the first to admit that some of the better patterns (Predator seems like a great one) are worth owning. For me.....NOT wearing commercial camouflage feels more "woodsy, natural" if that makes sense. I won't say it's more of a challenge, because I don't believe it is, but it seems to fit the simplicity of traditional archery well.