I remember one remarkable pairing from 'Double Time 6':
The young & slim Blake is nailed by a muscular & tattooed guy called Brian. And this Brian does a damn good job: he drills the boy in different positions long and intense. The whole action is captured and edited carefully, also the sound is perfect: no overdone moaning & groaning; the top keeps quiet, the bottom shows impressive facial expressions between pleasure and pain.
For me - this act is much hotter, more natural & inspired than everything I've seen from Kaden, Cash & Co. up to this day...