Both groups are good and are clearly having fun. This is above a beginner class, and is likely an intermediate or advanced class. What I really need to know is how long they were given to learn and perform this. One take? Two? Days? That means the world here.
Objectively, none of these dance moves were complicated or difficult (i.e., any reasonably coordinated person could eventually learn this sequence with enough instruction and rehearsal).
The boys were simply not in sync. The girls were much more in sync. I saw about the same amount of glaring errors, the largest of which was committed by the girl in the "Boss" shirt (front and center), but she recovered. To the guys credit, this choreography heavily favors a woman, as does the song/artist. It's a stacked deck to a certain extent. But even controlling for that:
I vote: GIRLS.