One thing i have learned over the years that separates suspension is the valving them selves. I have searched Iron and Dobin, I have seen more information regarding the valving on dobin than i have iron. For that reason i would have to recommend Dobin. Valving is what separates cheap suspension from high end suspension. If i see a MFG talk more about the valving of the suspension i am already inclined to believe that they have done extensive research on the suspension to match the vehicle.
One important fact to remember about suspension and springs are the preloads. What do i mean by this? If you plan to weigh down the vehicle with extra weight, Front Bumper + Winch, Rear Bumper + Tire Carrier, Interior organizer + Refrigerator, Roof Rack + Roof Top tent. We are looking at around+400Lbs. This will cause the car to drive much differently if you have not already accounted for this added weight. My old 4runner drove like crap when i installed the suspension lift, I expected this because I didn't add the weight that was necessary for it to drive optimal.
Once i added all the weight the car became very comfortable and drove optimally. The suspension kit i had on it was the OME, only reason i went with them was due to the high speed valving that incorporated into the mfg process for the suspension. Not alot of people install ARB, OME kits and were surprised when i did. After driving my car they regretted getting the ICON set up.