I'd prefer at least some third person view angles, POV in conversation and in general use is fine mostly, though the "beauty shots" that some games have are wasted in 1st person view at times. Sex scenes however are best IMO if they mix both 1st and 3rd person views, it really depends what you are trying to show, POV for something like blowjobs with eye contact are great, POV is less great for things like reverse cowgirl, especially if the scene isn't animated and is all stills, the lack of jiggle is always a pity in that case, whereas a good side view gives far more inferred motion because you can see the posture of both bodies more, which makes it far more engaging but that is just my take.
Basically mix and match to give the best view you can, don't feel like you have to stick to one or the other, go for what gives the best shots, especially if the scenes aren't fully animated.