Can't really compare with others - my only other pack is an old Cabelas external frame pack with the flip-down "shelf" to carry heavy loads. I usually leave this in spike camp and grab it after bringing in the first (light) load of meat in my daypack. It has tons of room and enough adjustability to be comfortable for most people.
By the way, external frame packs seem to be out of style these days, so getting a used one can be a real bargain - but they certainly work, especially for heavy loads!
