Didn't even think about the face until you mentioned it but you're right, most games will have you spending a lot longer looking at the face than anything else.
I tried to play Hotwife Ashley recently, I just couldn't get into it because the titular character (Ashley) has a f*cking hideous face.
A nice well shaped set of boobs, preferably pink nipples and to spice it up at least one of the girls having a set of inverted nipples. Secondly would be the girl having a cute face.