User blog comment:Realmartialarts/Know your sources/@comment-4890977-20120919185954/@comment-4652104-20120919212031

I think they were both just under 20 when they started their careers and are possibly in their late 30s now. However, with the fluid timelines in comics this is so hard to assess.

I think the better measure is the standing they have in their respective communities. In Marvel most heroes agree that Cap is "the best of them all" - the most skilled, experienced and tactically savvy (even though not superhuman). I think this is similar for Batman in DC. There is a reason why Batman, though only human, is a leading member of the Justice League.