It really depends. If I was choosing for myself I would prefer him to cum on my face. I like the dominance aspect of it - like he is marking his territory. It’s less intimate but (maybe for that reason) hotter in my opinion. But I often like to let him choose and if he wants to cum in my mouth or down my throat I’m fine with that too. Love to be with a verbal big dicked top who shoves it down my throat and tells me to take him cum. And I look up at him with his cock buried in my throat and I feel it pulsating while he shoots ropes directly into my stomach. It’s also fun to take the cum in my mouth and let it dribble out, like his massive load was too much to handle