To me the Edge just makes more sense. It pumps better in a 0w20 than just about any oil I've seen, the 40*C numbers are the best I've seen as well. Since I only drive about 100 miles a week now, I feel it will protect better for my short hopp'in than any 20 grade oil there is. If I thought something was better I'd use it.
If I were driving under the conditions your talking about it would still be a good deal. It pumps better when cold, and gets to its desired viscosity faster, win win in my book.
Hey Bear, did you check out big Al on that link? I can't do it from here for some reason.