Tech should depend on conditions. On a wet or contaminated runway, a slighty firm touchdown allows the tires to punch through the water film and minimize hydroplaning. On a normal dry runway, a smooth touchdown is easier on the airplane structure, gear, etc. Landing jets isn't rocket science. It's mostly power managemet. On an airplane like a 767-300 that is heavily wing-loaded, set the landing attitude, then smoothly retard power will get nice touchdowns. Early power reductions will get you considerable sink prior to touchdown and a startling plop. The 747 has such soft struts (and so many of them) that very nice landings are easily obtained. Very important is getting the wheels on the runway in the touchdown zone, on-speed.