Originally posted by SupezM'
Probably would come down to an edurance fight, sure Flash might be able to steal Superman's kinetic energy. But energy can be regained especially in Supe's case.Under the yellow sun he is just a battery he can go on forever, Wally will run out of juice eventually.
The fight should be over long before endurance becomes a factor, but even if that weren't the case, Superman is literally a battery. Batteries run out and even if they can be recharged, that takes time. Someone said it glibly, but it's rather true, Flash could speed steal Superman, throw a black blanket over him, then come back and kill him after all his energy is exhausted.
Flash, on the other hand, is not a battery but a conduit. He mainlines, or channels, the Speed Force... the extra-dimensional, unlimited source of his powers. How else could he move his body at such speeds, hit with the force of white dwarf star, regularly smash the laws of physics in terms of friction, energy, respiration, gravity, etc.?
Bottom line, Clark's "juice" is stored solar, Wally's is an entire never-ceasing dimension... Clark's a bottle, but Wally's on tap.