No KDSS. Want better ride quality on the road vs Offroad. Whichever handles bumps and cracks on the rode better.
it depends on speed your traveling and what type of terrain you plan on "speeding" in due to shock valving. My suspension has a very european GT firmness on road due to the kings valving, and working in conjunction with KDSS (which eliminating body roll). Offroad, It's pretty firm when going slow, but the faster you go and the crappier the terrain, the softer it feels. When I lower my tire pressure, I can go full retard on washboard roads and small woops, and it feels really composed. When I drive slower on those service roads, sometimes I can feel my teeth want to rattle out, so I drive faster, lol.
Icon's will have your standard valving (which is degressive (Sp)), which is pretty much the standard for on road cars. It will feel closest to your OEM ride but firmer.
You can't go wrong with either choices (and you probably wont notice a difference in normal everyday driving), so then it comes down to cost, ease of service locally, and customer service. I live in socal, so I choose Kings, because they are literally right next door, and pretty much everybody runs Kings in socal, so I was like "why not".
If you are just going to do roadtrip activities, (i mean overlanding buahahha), I would probably just do bilsteins or OME and heavy duty springs and be done with it. Mainly while they aren't rebuildable, they are easy to find and cheap to replace. So this is the part of what you want to do with your suspension.
If i'm wrong, I'm sure someone will correct me...lol.