Captain Atom vs. Superman

In the JLU animated series CA actually put up a decent fight against supes, but ended up getting smashed. All Tv aside, superman'll destroy CA

TV cartoon logic counts for nothing here.
Atom seems to have the power to win, but it can also be unstable enough for him to lose. That time-travel power sometimes acts out of his control.

http://en.wikipedia.org/wiki/Captain_Atom

Superman would rip this guy open like a can of peas.this is like ,4 seconds of fight.