No! The technique is the same both on takeoff and landing on all 737. The feel might be different, but the picture the same.
None of the airplanes should be rotated too fast. Even in the 600 there should be a gentle rotation. One should be minedful though not to over-rotate the 400, 800 and the 900.
Landing. As Boeing states, start at 50', gently retard the throttles to be idle at touchdown. However this depends on the windconditions, gust etc. Like in all airplanes, the flare is only a reduction of the sinkrate until touchdown. "Holding it of" in the flare is wrong, and often result in hard landing, tailstrike and less runway available.
Empati