what i have seen so far

Seems like the only two frats that matter are D Chi and Chi Psi. I have gone to a lot of different frat parties and all the girls leave at 12 to go to one of those two. I feel like other frats just show up at their day drinks too cause thats where all the girls go. Idk they just seem like the only two consistent parties and no one else has a chance. Has it always been this top heavy? I could be wrong