Quicksilver vs. Zoom

And why the hell not. After all you only have to change red to yellow and yellow to red and bingo, from the Flash into Zoom in a heart beat.
Zoom (real name Hunter Zolomon) is a comic book supervillain from the DC Comics universe. He is primarily associated with the superhero Flash and is the third of the Reverse-Flashes. As Hunter Zolomon, he first appeared in The Flash: Secret Files & Origins #3 and was created by Geoff Johns and Scott Kolins.
Hunter was severely injured in an attack by Gorilla Grodd in Iron Heights, when Grodd staged a mass prison break, and was left paralyzed from the waist down. He asked Wally West to use the time-travelling cosmic treadmill in the Flash Museum to prevent this from occurring, but West refused, saying that he could not risk damaging the timestream. Zolomon, feeling that Wally should be prepared to disregard such fears for the sake of their friendship, then broke into the museum and attempted to use the treadmill himself. The resulting explosion destroyed the museum and shifted Hunter's connection to time - described by Jay Garrick as him being 'derailed' from the timeline by the explosion - thus allows Zolomon to alter the speed at which he could move in time, giving him the effect of super-speed.