I also learned to fly (and land) a 150/152. Thought I'd got to grips with the 172 and then realised I hadn't quite. What I failed to notice (or be told) was that the large surface area of the wings meant you got more lift, so could land it more slowly than I thought. I know people that push it as far as 55kt on windless days.
For girls - I found the 172 hard work in the go-around - just the amount of forward pressure needed made my arms shake. An instructor brought my attention to this and the potential dangers of it.
The other thing I'd say is that PA28s are definitely more stable and smooth (had first-hand experience of this this weekend). You will feel the bumps a lot more in a 150/152 and a bit more in the 172. You also can't let go of the yoke for as long (or at all, if the rudder trim is a bit out).