Just found this 2007 Rider magazine XRL DR KLR comparison thanks to a link from another ADVrider. http://www.ridermagazine.com/output.cfm?id=1214911
Here's the money line as it pertains to this thread: "According to the stone simple but precise Rider scale, the wet weights of the Honda and Suzuki are 344 and 368 respectively, while the KLR rides in at 411 pounds."
I have these bikes in the list at 347, 367, and 398-401. The old-style KLR must have gained some weight since 1992.
Otherwise it isn't much of a test. The Suzuki got the best mileage and had the least vibration, the Kawasaki had the best seat and the worst brakes, and the Honda had the best suspension and the tallest seat.