I definitely think that a pretty face is the best place for a huge load, I just don't think that's where the scene should end. You shouldn't waste a good facial by ending the scene!
The only better way to end a scene is when the girl continues to suck that cock after the cum is all over her face. I particularly like to see some deepthroat with a nice load on the face. Another good way to end is when she continues wearing the facial after the scene is over, and they start...