Speaking of superpowers: don't you guys think that super-speed is the most broken power ever, at least when it comes to superhero stories? I mean, the speedsters are shown to move at incredible speeds... speeds that, logically, should make them invincible. A Flash-level superspeed is completely unbeatable when treated realistically... So, to give the speedster heroes challenges, writers make them very inconsistent: the Flash can run to a store, pick up groceries and come back in a blink of an eye, but he still has trouble dodging Captain Cold's ice gun, he can get tripped etc.
BTW. Please explain one thing to me: why do speedsters *run*? Why don't they *walk* at superspeed?