Hello Mr.Dounin,
the differences between the two are very obvious to me / to my ears:
student A does accentuate syncopated, student B does accentuate on the beats.
But both versions do sound very bad to me.
There is no real legato playing. So that's the typical piano lesson performance: the notes are correct, the playing is a little overcorrect, and the feeling is: "It's so ugly"
So, that's my opinion.
I'm curious what you will tell us, what's the demonstration point of these recordings.
carefully
counterpoint