Persoanlly I like the quick intro...fairly long rape and then quick departure. I mostly enjpy interracial rape, but sincerely enjoy any good rape material.
A horny male rapist, needs to find some action through whatever means, finds it, does the deed and then leaves. Hopefully leaving the female victim in much worse shape than before. I like it when the vics are virgins, wholesome, and generally 'nice'. But I also enjoy it when some sort of tease, or other kind of 'she had it coming to her' type is the victim.
I want the rapist to be mean and brutal, no half measures. I also like it when they have an axe to grind. Ex-cons, once jilted, angry old men that sort of thing. Uglier and dirtier the better.
As long as the rapist is satisfied with fucking the vic into hating themselves, pregnant(really like when they carry the rape baby), and leads the rapist to more victims. I like it when a whole neighborhood gets it, a group of friends, church group and the like. I am satisfied.