I always had a problem on the first couple landings after going from one to the other. Going from the 172 to the 150/152, I'd flare too soon, and float or porpoise to a touchdown. Going from the 150/152 to the 172, I'd plant it firmly on the runway, possibly from flaring too late! 30 minutes of T&G's always solved the problem. In calm air, I don't find much difference in the two, once I'm used to them again. It's when there's a little wind or turbulence that I can tell how much heavier the 172 is, or how much more responsive the 150/152 is! Different airplanes require different techniques is all I see in the comparison.