Scholars debate everything ...
The old Land Rovers, up to the Series III, had very limited suspension travel and a nasty tendency to break springs and eat half shafts. Thus it was common to see a front and a rear spring bolted to the front bumper. (The half shaft was stored inside.) The original Land Cruisers were strong, but as with most Japanese vehicles, way over sprung; real kidney crushers.
The original Range Rover had, hands down, the most interesting and sophisticated suspension on any 4x4 to date. The major weak point was the Boge Hydromat load leveling system which tended to fail on wash board. (The Australians used to put the rear springs up front and replace the rears with new, higher rated springs.) That said, Rover set the standard with coil springs, long travel, and big shocks.
The best ride I have ever found was my old '77 Blazer with the original Rough Country suspension and 12.00x15 tires. That thing simply ate up washboard. You had to keep an eye on the speedometer as you would not feel your speed. :Wow1:
The Range Rover suspension migrated to later generations of Land Rovers. My last experience with Land Rovers was in the CAR about two years ago where I found our Land Cruisers, now with coil springs, top have more travel and a softer, but stable ride. Spent a fair amount of time in these:
But preferred these:
Land Rovers sold in the U.S. may, of course, be different. (I have never driven off road in the U.S.) Off roading in UK is a totally different proposition from the roads I know.
For me, the ideal suspension will have 6" or more free wheel travel, softer springs, and massive shocks. The goal is a suspension that is soft, never bottoms, and absorbs washboard without passing the vibration or impact to the frame.
Again, my opinions are only based on the vehicles that I have owned or driven on the roads that I know, Africa and South America.
As in all of this, YMMV