I often find m/m to be most cathartic, as - for me - there’s no chance of a sexual distraction entering into the sway (I have trouble finding good f/f as they all seem to be horrible actresses and/or just pretending for an excuse to have sex). Just pure ticklish reaction, that’s what I’m in for. And I find it more genuine if a big, strong guy is reduced to tears than a female. But I do enjoy /f as well.
Not saying there aren’t male fakers or sex in m/m, but it seems more overt if sex is done for a male than a female.