Yeah, best porn is when the two (or three, or four) guys are clearly getting off on each other. Best way to tell? When the bottom is looking up adoringly into the eyes of his top, and vice versa.
Love seeing their view of each other's faces. The bottom's-eye view around 8:25 is so rare in porn. There should be more of that. One of the hottest things when you fuck is looking at your partner to see the pleasure on his face!