This is a tough one, I had to remove quality of bathing suits from the comparison, so just going off of the rest:

1 - more petite, got a good jump at the start, but seemed to lose vertical leap after a few jumps, maybe she got tired, a lot more nipple play in general

2 - Darker skin, larger nipples, more piercings, and those eyebrows. Maintained good jump height throughout the whole video

Going right based on darker skin, nipples, and piercings, but I have a thing for darker women most of the time