LOL, DC!
I'll refrain from rehashing it... but you're right, with 99% of MY hunting, I'm in the treetops and the background is sky blue/white.
As noted, GWW's Fall Gray has a darker base than Predator's, which is pretty much white-white. GWW's FG is much closer to the traditional Fall Brown; it's really a great compromise between the two patterns.
Most of my thoughts on GWW's patterns can be found here:
http://www.huntingnet.com/forum/tm.aspx?m=2399285&mpage=1
Aw heck, Joel... I couldn't resist... I pulled this explanation from the link above.
Here's always been my explanation: If the pattern is universally deemed so great after the leaves have dropped and thebackdrop is predominantly bare limbs and bluish-gray, hazy skies -- thenhow much better will it peform when you add a bunch of leaves into the mix? The addition of a canopy of leaves only serves to helpany camoflauge pattern -- not detract from it. TakeANY camo pattern that can stand alonein a barrentree, and now add leaves into that equation... It's only going tobe better.
Go to the link though... there's some great pictures on there, if I do say so myself! [8D]