Quicksilver terrigen mist vs Flash
Quicksilver is a mutant capable of moving and thinking at superhuman speeds. Originally capable of running at the speed of sound; exposure to the High Evolutionary's Isotope E made it possible for the character to run at supersonic speeds of up to Mach 5 and resist the effects of friction, reduced oxygen, and kinetic impact while moving at super-speeds. The character's speed allows him to perform feats such as create cyclone-strength winds; run up walls and cross bodies of water.
Quicksilver loses his powers of speed when his sister alters reality, but gains new powers courtesy of the Inhumans' Terrigen Mist. The mist gives Quicksilver the ability to displace himself out of mainstream time and space and "jump" into the future. The character can summon several time-displaced duplicates of himself and appear to teleport by "jumping" into the future and then returning to the present at a new location. By voluntarily embedding fragments of the Terrigen Crystals into his own body, the character could empower former mutants with extreme versions of their superhuman abilities. The effect, however, was usually fatal. The crystals are subsequently forced from the character's body by the mutant Rictor, leaving him without these abilities. Quicksilver inexplicably regains his mutant superspeed powers after having a series of hallucinations.
Ultimate uni. Q.S. ran from the Savage Land to Washington D.C. in seconds... 616 Q.S. after being depowered then exposing himself to the Terrigen Mists became a time traveler, albeit jumping moments in time ala Professor Zoom. Quick silver was Born with his powers, and therefore had more time to acclimate to his powers. If we're using science to figure this out, then how does a bunch of chemicals in a police forensics lab enable someone to move at superhuman speeds? It doesn't hold up scientifically. In the J.L.A. / Avengers crossover, quicksilver out ran the flash. In the D.C.U. The Flash had NO power when cut off from the speed force. In the Marvel U. Which is why he tripped when he tried to run.
I think QSTM chance compared to Flash in any universe (DC / Marvel) even Flash use speed force
