I know what you meant.
What I'm saying is that Fantastic Four (which is actually in this match) have a lot of advantages in this match up, not least of which is numbers. Also, since you've chosen old school Brainiac who wasn't powerful, just had lots of accesible tech, he could get smashed, melted, crush etc fairly easily by almost any member of the opposing team if he was caught in person, not in his ship.
So, what I'm doing is, by using an extreme example, is poking holes in your logical fallacy that 'fights kryptonians=wins against non-kryptonians.'