I definitely would not offer comparisons or details about other specific packs on this thread. I wouldn't want to derail anything. If you want my opinions about others, PM me.
my advice is to buy this pack...as well as all of Guido's packs. The quality is very high, and the price is lower than any other commercial pack out there. Of all his packs, this is definitely one of my favorites. While I did have some desires initially unmet by this pack, the profiles are very kind to tweaking. I've spent MUCH more time with other packs trying to find the 2 or 3 stand-outs and tweaking each to get it where I wanted, and could never quite get there. 2 of the packs were so bad I didn't even bother trying to tweak - complete wastes of money. Knowing what I know now, I would only get 4 of the 9 or 10 Mark IV/V packs I've bought.