My interests are Gender and Sexuality, not criminology, but I had a similiar conundrum. Ultimately, with the input of several PhD professors, I decided to apply for Sociology not a Gender Studies PhD because it allows for a much broader range of intersecting identities and future research. However, I only gave serious consideration to schools that have a designated WGSS emphasis/certificate with kick ass women's studies programs that work closely with thier sociology counterparts. IMO, the deciding factor is how broad you want your scope to be. Race, class, crime, gender, sexuality, and ability are so intertwined for me, I just don't think I can stick to one for my whole career.