Pantheon v Aatrox
Pant pokes Aatrox to hell early game. Forcing him to back-off and miss CS while the spartan freezes the lane. Aatrox decides act like a bully? Dives the pant? Pant simply stuns him, walks away, spears him. Aatrox persists, another spear.
Volibear v Lee-sin
Lee-sin is melee, Voli is melee. If at anytime lee get close to Voli, Flip & Bite. If lee uses his sound wave thing to get close to Voli, Flip & Bite. If Lee attempts to duel Voli in an extended 1v1 fight, Flip & Bite & Ult & Passive! Having used most of his skills by now, Voli is free to run lee down with his ghost. And since Voli's q is off CD he can flip him again. Dead.
Xin-Zhao v Zed.
This one isn't so one-sided like the first two. The winner will be determined with skill. Both have a gap closer. Zed has some range, but Xin has early sustain and a knock-up in any 1v1 duel. Under the proper circumstances, Zed's ult can be mitigated by Xin's ult, a knock-back. I've never had any problems with this match up before though.