Predictably, I think teacher/student goes hard. Any kind of power imbalance really, but very few lolisho artists have the kinda pervyness that hits me hard. Typically the few who manage to appeal to me are queer and/or female artists, OR male artists who aren't afraid to go all-in on the misogyny kink/power imbalance stuff. Average "I Can't Believe My Little Sister's Pussy Gets So Wet!" type of doujin do nothing for me.