There are some girls who can really jump but there is also a much higher percentage of knee injuries in female bball players.
Back when I was at PSU, I often played pick up in Rec hall with Rashaan Carlton, Matt Gaudio, Dan Earl, etc and they asked that I get on the scout team. It is such a time commitment that I could not do it but besides the guys having one, Rene had a group of male students who would practice/work out against the womens team. If the guys played straight up against the women, they would win everytime, just too much natural size/strength/speed difference.