none of those distinctions matter much to me ... I look at most of them from a mechanical standpoint... and for that reason I see them as pretty much all the same.
Frankly... because most scooters are more modern... they are actually better performers in general.
Also... the pedals on a lot of mopeds kind of scare me... I am always picturing one hitting the ground while I am leaned over dragging my knee while passing a Ninja 250 and crashing me.