Colby has a higher acceptance rate for females than males. Class of 2018 it was 30%. Bates for females is much tougher than males.
Colby eliminated its supplemental essay last year to gin up applications, so despite a drop in acceptance rate, its still on par with 2018 I would imagine.
The overall acceptance rate for Bates females was somewhere between 15 - 17% for Class of 2019.
Colby is the better risk among the two, higher acceptance rate and lower average ACT.