Does it get any cooler than seeing a superhero going up against one of the very best of his rogues? No. No, it doesnt. And so here we were, with the Sultan of Speed coming face to face once more with the man who killed his mother as the two speedsters butt heads at Mercury Labs. I guess, technically, Reverse-Flash got the best of this battle, but thats largely down to the fact that Barry Allen was confronted with the huge WTF moment of being greeted by the sight of a mortal enemy that he thought wasnt supposed to even come into existence. Regardless, it was still mighty cool for viewers to see these two lifelong foes do battle once more, particularly as The Reverse-Flash has so far been a far more interesting villain than the crazed Zoom. Sure, Zoom is one scary, merciless bad guy, but the Reverse-Flash offers a more multi-layered, intriguing and personal threat.