My favorite vids are of real men succumbing to their self-induced primal pleasures, losing themselves to a blissful desperation of rubbing their exquisitely sensitive and needy cocks. It's heavenly to watch a quick session in its full frenetic glory, from the first well-placed stroke that's welcomed by an overeager cock, to a man's baser instincts dissolving from their restraints, to a fast and furious shoots between fingers and hands responsible for bringing about the thoroughly satisfying relief.
Voyeur vids, ones that catch guys unawares in a hidden jerking fury, are a special kind of hot.