The least interesting to me is piss on the body/pussy, or when they piss in the mouth of the girl but everything goes out and she pretends to swallow but in fact she just swallows a little quantity or even nothing at all..
I prefer when they group piss directly on top of the girl's head, showering her, I find it to be the most degrading (thus satisfying) setup. For exemple Breiny Zoe is good at that lately.
Of course I prefer when the girls actually drinks/swallows all the piss (and it's even better when you can hear the gulp noise

Maybe I forgot some things feel free to add your favorite piss setup