As stated, and in general, Puch drivetrain components all came from the same parts bins so mechanically they range from similar to the same.
The forks and suspension of the two are exactly the same but Pintos have a lot of advantages over Maxis In that the frames are far stronger, much easier to access the carb & wiring. The Pinto is an open platform that offers far less restrictions to modifications.
That said, the Free Spirit is far better moped than either of those two. It’s a bigger, more comfortable moped. The forks and swing arms are longer, beefier, perform better and withstand far more abuse than the Pinto/Maxi. Also, the rack mount structure on the Pinto frame is prone to splitting if it isn’t shored up enough - I’ve seen that on quite a few of them.
Beauty is in the eye of the beholder so you decide what is more pleasing to look at but I tend to avoid Maxis, get Pintos to fix and flip, and the Free Spirits tend to stick around here longer.