i like my cabelas alaskan outfitter frame pack.
pros: it's well planned out and has all the features you need for a spike camp hunt (not for day hiking or short packs)
cons: lots of weight, somewhat noisey.
to fix the weight problem, i've cut everything off that pack i didn't need. i took a tubing cutter to the frame and made a spotting scope mount out of the extandable frame (applied for a patent for the mount). the down side of this, is that the pack is mangled from what it once was. but it suits my needs just fine.
(cut foam padding, extra straps, rain cover, freighter pod, backpack straps on the camo part. probably 5 pounds of accessories)
all of my gear, including sleeping bag, pack stove fuel, food and water is under 40 pounds. i've been perfecting this setup for several years.
sometimes i wish i could start over with a different frame and stuff, maybe next year.