That is an impossible question.
Autofab is a top notch kit, it performs amazing, is strong as can be, and it also costs more

then the comperable Camburg kit.
The Camburg kits are awesome, there are also about 100 times more of them out there, so its only natural there will be more complaints.
Personally I would go with the Camburg kit if you are installing it yourself, or have John at Autofab buildyour truck if you are having it done.
You cant go wrong with ether one, HOWEVER with any of these kits you can expect to run into minor issues when doing the work yourself, with a custom "kit" suspension like this it is un avoidable....
Camburg is tried and true, Autofab is a true performer. Camburg has more kits out there and they have been refined a little more, the Autofab approach is more simplistic in design. Most camburg kits are installed by Camburg, and the same is true with Autofab. If you are going to go that route (have a shop do the setup) then there are alot more options then these too..
the Camburg setup with the 4" per side extended and trussed beams, custom axleshafts, coilovers, and heim radius arms cannot be beat, but then who can afford that? They use uniballs for the axle pivots, they can even upgrade the brakes and hubs to a much more than stout setup. the sky is the LIMIT with Camburg is you have the $$$.
Autofab does not make beams as wide, but the kit is simple in design and performs EXCELLENT, with less lift and less width.
Either setup should use coilovers, which will require custom mounts.....
So I think it comes down to what you are going to use the truck for?
I mean if you are talking about running through whoops at 45 MPH with 35" tires and 6-8" of lift height you will need to spend about $7500 at Camburg just to get started. You cannot forget about steering setups, width choices, and frame mods to accomodate the new coilovers, bump stops, bypass shocks, etc...
Now if you just want an all around great performing TTB setup, the Autofab is worth every penny.
These are not your only two options, you can also build it yourself, hire a shop to build it, etc...
Like I said loaded question. Your best bet is to read read read all you can before openingyour wallet.
This is an EXCELLENT site to start:
www.dezertrangers.com