User blog comment:Captain James Rogers/Justice League V.S. The Avengers/@comment-2031194-20121210223131/@comment-4651179-20121211030049

I just mentioned Captain America because he was trained not only to be physically the perfect human but also mentally.

Tony Stark is also a rival, he has made big plans, he's an excellent tactician. But also, as far as I know, Batman mostly Mr. World's Greatest Detective.