Dion Jordan is the person I've seen the second most. First game I watched was against Washington, and he really didn't look very physical. Good hand usage a nice little rip move, and impressive flexibility for his size. I thought he just ate up a slow footed right tackle, and wasn't overly impressed.
But if you can, (I don't know if it is on YouTube, I got it from another draft site) watch his game against Arizona. So impressive. Extremely active hands, variety of moves, knew how to disengage, etc. Needs to bulk up and stay lower in the run game, but I'm extremely impressed with this kid.