So, you've run the Bilstein 5100's on your truck?
While anyone can spend time Googl'ing and find (like any other subject) that there are certainly differing views on the 5100 with respect to "better", "more firm", "harsh", etc. IMO, the ride quality is MUCH improved over the marshmallow stock suspension. Seems around Dallas, roads are always under construction and there is a lot of uneven bumpy terrain. Like many, I did not like the way the truck handled with the soft stock shocks. One of the first things I've always done on new vehicles (definitely trucks) is wheels and tires and new shocks on trucks. OEM shocks on most standard cars and trucks is one place manufacturers skimp. Larger wheels and tires magnify the OEM shock shortcomings. From what I've read (and I spent a lot of time reading both facts and opinions on leveling options and these shocks), most who install the 5100's like the more firm ride they provide as opposed to the mushy soft ride of the stock shocks. Facts also seem to agree (as you will concede) that they are much safer on front suspension components than other lift or leveling options. Lastly and subjectively, I agree that they are more FIRM (a very good thing IMO). As many others agree, the are NOT HARSH.
It's humorous to me how much keyboard action has been spent over recent years on the Bilstein 5100. One thing that tickles me are all the xspurts debating whether the 5100 uses additional preload over OEM stock (which are also preloaded). Yes, they increase preload with perch settings over stock. Straight from Bilstein: "The lift on the 5100 Series leveling shocks is achieved by increasing the preload on the factory coil. By adding more preload, the shock is designed with more rebound damping as compared to the O.E. or standard aftermarket replacement shock.... with the perfect damping rates, optimizing your ride and handling characteristics."
Again, have you run the 5100's? If not, is your truck leveled and if so, what option did you go with?