Similarities between Shonen Manga and Superhero Comics?

From Newsarama comes an article titled "Yûjô! Doryoku! Shôri! The fiery spirit of battle manga" (guest commentary by Jason Thompson), which looks at the similarities between shonen manga and superhero comics:

In both American and Japanese comics, there is one question that never gets old: "Do you think character X could beat character Y?" Despite the relative popularity of Japanese girls' comics and increasingly fluid gender demographics, shonen manga is still the #1 demographic category, and within shonen manga the #1 genre is "battle manga."