Here's the problem with the above mentioned kits as well as all previously mentioned: None of them have the necessary required equipment to handle a life threatening injury.... A first aid kit that can handle scrapes, bumps, bruises, cuts and small, non life threatening bleeds are 'good to have' kits, but you can just as easily get by without them. Its when the chips are down and you are bleeding heavily that a good first aid kit is the difference between dying and surviving, especially on the trail where ambulances and rescue vehicles will not be easily able to access.
What one should really be carrying, IMHO, is a kit designed to treat an injury that is life threatening, which none of these can do effectively. None of the kits can handle an arterial or large venous bleed (a few 4x4's won't cut it), a long bone fracture or similar life threatening event.
Take a basic kit, add the following and you're off to a good start:
A box of 4x4s
Kerlex (great for stuffing into a large would)
Tourniquet (SWATT-T is a simple, cheap and effective one)
OLEAS or Israeli bandages (great for large wounds)
Triangle bandages (6)
The above mentioned items alone can handle a major bleed or fracture, which is far more important than a cut, bump or bruise, which can wait until you get home.
Add some region specific niceties like bug spray, OTC analgesics, sunscreen, anti emetics, anti diarrheals, etc. and you have a pretty good kit..